Levothyroxine

This page contains recent news articles, when available, and an overview of Levothyroxine but does not offer medical advice. You should contact your physician with regard to any health issues or concerns.


Overview:

Levothyroxine
(when available)

Pharmacology and use:
Levothyroxine (T4) is a synthetically prepared levo isomer of thyroxine, a hormone secreted by the thyroid gland. Levothyroxine is used alone or in combination with antithyroid agents to treat hypothyroidism, goiter, chronic lymphocytic thyroiditis, myxedema coma, or stupor. For use as replacement or supplemental therapy in patients of any age or state (including pregnancy) with hypothyroidism of any etiology except transient hypothyroidism during the recovery phase of subacute thyroiditis or primary hypothyroidism resulting from thyroid dysfunction.

Mechanism Of Action:
Levothyroxine acts like the endogenous thyroid hormone thyroxine (T4, a tetra-iodinated tyrosine derivative). In the liver and kidney, T4 is converted to T3, an active metabolite. In order to increase solubility, the thyroid hormones attach to thyroid hormone binding proteins, thyroxin-binding globulin and thyroxin-binding prealbumin (transthyretin). Transport to thyroid hormone receptors in the cytoplasm and nucleus then takes place.

News Articles on Levothyroxine

READERS RESPOND  -  05 Jan 2010
...fexofenadine, clopidogrel, levothyroxine, omeprazole, fluoxetine, prednisone, simvastatin, nitroglycerin, aspirin, and a multivitamin. ... Journal of American Medical Association (subscription)

The Top Ten Stories Affecting Thyroid Patients in the Decade from 2000-2009  -  ‎Dec 30, 2009‎
...for information about thyroid hormone replacement treatment options beyond levothyroxine, and even the formation of the Save Natural Thyroid Coalition, ... About - News & Issues (blog)

Could your indigestion actually be heart disease?  -  ‎Jan 4, 2010‎
Once diagnosed you will be given a drug called levothyroxine, a synthetic version of the thyroxine hormone produced by the thyroid gland. ... Daily Mail

Feeling low and lethargic? It could be an underactive thyroid  -  ‎Jan 2, 2010‎
A: You will be prescribed a synthetic version of the thyroid hormone - levothyroxine. A standard initial dose is trialled and then the doses can be tapered ... Daily Mail

Equine Endocrine Disorders Discussed at AAEP  -  ‎Jan 1, 2010‎
...cortisol rhythm test, monitoring of treatment, trilostane administration, and the use of levothyroxine sodium to accelerate weight loss in obese horses. ... TheHorse.com

Hypothyroidism may cause reversible dementia  -  ‎Dec 30, 2009‎
There is also a generic form, levothyroxine. There is a great deal of controversy over whether there is a difference in the various brands and the generic ... Gloucester Daily Times

PEOPLE'S PHARMACY: Alcoholic abusing mouthwash?  -  ‎Dec 16, 2009‎
This is more similar to Armour than synthetic levothyroxine (Synthroid). Joe Graedon is a pharmacologist, and Teresa Graedon is an expert in medical ... Atlanta Journal Constitution (blog)

Tired of Being Tired?Cancer-related fatigue doesn't have to slow you down.  -  ‎Dec 23, 2009‎
Fatigue caused by low thyroid function can be treated with daily synthetic hormone pills, such as levothyroxine (sold under the brand names Levothroid, ... Curetoday.com (press release)

Merck Serono Announces Collaboration in Basic and Clinical Research in ...  -  ‎Dec 16, 2009‎
...sapropterin dihydrochloride) as wellas cardiometabolic diseases (Glucophage(R), metformin), (Concor(R),bisoprolol), (Euthyrox(R), levothyroxine). ... PharmiWeb.com (press release)

Woman taking 14 different drugs suffers polypharmacy overdose, suit claims  -  ‎Dec 20, 2009‎
Tramadol, Remeron, Protax, Azithromycin, Busiprone, Cytomel, Alprazolam, Bumetanide, Triamterene, Mirtazapine, Fluoxetine, Levothyroxine and Lexapro. ... Madison County Record

Merck Serono Initiates KAMPER, the First Pan-European Registry for Patients ...  -  ‎Dec 10, 2009‎
...sapropterin dihydrochloride) as well as cardiometabolic diseases (Glucophage(R), metformin), (Concor(R), bisoprolol), (Euthyrox(R), levothyroxine). ... FOXBusiness

Wijziging productinformatie alli (orlistat) 60 mg  -  ‎Dec 11, 2009‎
Ook interacties met anti-epileptica en levothyroxine staan nu in de samenvatting van de productkenmerken (SPC) en de patiëntenbijsluiter. ... Medical facts

Merck Serono annonce une collaboration en recherche fondamentale et en ...  -  ‎Dec 16, 2009‎
Kuvan(R), dichlorhydrate de saproptérine) et cardio-métaboliques (Glucophage(R), métformine ; Concor(R), bisoprolol ; Euthyrox(R), levothyroxine). ... Capital.fr

Generic Name: Levothyroxine, Eltroxin, Evotrox, Thyrax, Euthyrox, Levaxin, L ...  -  ‎Nov 11, 2009‎
Synthroid (generic name: Levothyroxine; brand names: Eltroxin / Evotrox / Thyrax / Euthyrox / Levaxin / L-thyroxine / Thyrox / Eutirox / Levoxyl) is a ... Pattaya Daily News

A Shopper's Guide To Use Of Generic Drugs  -  ‎Nov 2, 2009‎
Nevertheless, with levothyroxine [to treat thyroid conditions] and antiepileptic drugs, Medical Letter consultants recommend using one formulation (brand ... Philadelphia Bulletin

Do I Need a Thyroid Check?  -  ‎Oct 29, 2009‎
Hypothyroidism is treated with a drug called levothyroxine. This is a synthetic hormone tablet that replaces missing thyroid hormone in the body. ... Consumer Affairs

Thyroid News from the Journal of Clinical Endocrinology and Metabolism  -  ‎Nov 5, 2009‎
After thyroid cancer, thyroid patients who have had withdrawal of levothyroxine -- versus use of recombinant TSH (Thyrogen) -- have similar rates of tumor ... About - News & Issues (blog)

MUHAMMAD AND LARRY, THEN AND NOW... By Martin Wade  -  ‎Nov 11, 2009‎
...**Thyrolar ® (liotrix tablets, USP) is a synthetic product combining L-triiodothyronine (T 3 ) and levothyroxine sodium (T 4 ) and is indicated for the ... BraggingRightsCorner (blog)

Generic Drugs Are Much Cheaper, but Use Caution for Those That Have 'Narrow ...  -  ‎Oct 27, 2009‎
Then, a few months ago, she received the generic version, levothyroxine, instead. "It actually hurt to pick my grandchildren, my youngest up. ... ABC News

Fears emerge over weight-loss drug's links with kidney damage  -  ‎Nov 2, 2009‎
...such as the hormone replacement levothyroxine, and anti-epileptic drugs or patients with kidney disease should consult a doctor before using the drug. ... Irish Times

Merck KGaA profits down as R&D spend increases  -  ‎Oct 26, 2009‎
...while Merck's thyroid treatments, notably Euthyrox (levothyroxine), contributed 41 million euros, up 4.8%. Chairman Karl-Ludwig Kley said that “we now ... Pharma Times

Part D Negotiation Will Save Medicare And Seniors Billions  -  ‎Oct 30, 2009‎
The VA savings were substantially greater for all ten drugs; Amlodipine Besylate, Furosemide, Lipitor, Lisinopril, Hydrocodone, Atenolol, Levothyroxine NA, ... Medical News Today (press release)

Novartis drug Tasigna(R) meets primary endpoint in pivotal trial against ...  -  ‎Oct 19, 2009‎
Clinical cases of hypothyroidism have been reported in thyroidectomy patients undergoing levothyroxine replacement during treatment with Gleevec. ... Reuters

米・08年処方薬トップ50 処方ã?›ã‚“枚数トップ5ã?¯GE  -  ‎Oct 29, 2009‎
...リストã?®ãƒˆãƒƒãƒ—ã?¯éŽ®ç—›å‰¤ã?®Hydrocodoneã€?2ä½?ã?¯é™?圧剤ã?®Lisinoprilã€?3ä½?ã?¯æŠ—コレステロール薬ã?®Simvastatinã€?4ä½?ã?¯Levothyroxineã€?5ä½?ã?¯æŠ—生剤ã?®Amoxicillinã? ã?£ã?Ÿã€‚ ... ミクスOnline

Цветок Ñ?меющийÑ?Ñ?  -  ‎Nov 11, 2009‎
Get levothroid, synthroid generic rx drug name - levothyroxine from our internet pharmacy via mail order, free worldwide shipping, no prescription. ... Time Out Санкт-Петербург

Should the levothyroxine starting dose be tailored to disease...  -  Jul 22, 2008
Tailoring the levothyroxine starting dose to the severity of hypothyroidism will result in rapid normalization of serum free T 4 levels in babies with ... Nature.com

Mylan gets OK to sell thyroid drug  -  Feb 8, 2008
Levothyroxine sodium is indicated for the treatment of hypothyroidism, also known as underactive thyroid, and a thyroid disorder called pituitary TSH ... Forbes

Does levothyroxine improve pregnancy outcomes in euthyroid women …  -  Aug 9, 2006
Negro R et al. (2006) Levothyroxine treatment in euthyroid pregnant women with autoimmune thyroid disease: effects on obstetrical complications. ... Nature.com

FDA to tighten potency rules for thyroid drug  -  Oct 3, 2007
The FDA is making the move because data shows the drug, levothyroxine sodium, tends to lose its potency, which can make it ineffective. ... Reuters

United States District of Columbia Circuit Court of Appeals Reports -...  -  Apr 8, 2005
...drugs" because "no currently marketed orally administered levothyroxine sodium product ha[d] been shown to demonstrate consistent potency and stability. ... Pay-Per-View - United States District of Columbia... - Loislaw

US warns Abraxis BioScience about plant problems  -  Feb 15, 2007
Abraxis also has been marketing three injectable drugs -- calcium chloride, levothyroxine sodium and vasopressin -- without having FDA-approved applications ... Reuters

Levothyroxine dosage and the limitations of current bioequivalence …  -  Nov 30, 2005
Precision in the dosing of levothyroxine (LT 4 ) products is guided by sensitive TSH measurements, and is essential to optimize therapeutic outcomes and ... Nature.com

Mylan Laboratories (MYL) Levothyroxine Sodium Tablets USP Approved …  -  Jan 3, 2007
Mylan Laboratories Inc. (NYSE: MYL) announced that the US Food and Drug Administration (FDA) has granted the company approval to market its currently ... StreetInsider.com - StreetInsider.com (subscription)

FDA Standards For Levothyroxine Bioequivalence, Substitution May Lead...  -  Oct 9, 2006
Levothyroxine sodium (LT4), marketed as Unithroid, Synthroid, Levoxyl, and Levothroid, is the principal form of thyroid hormone replacement taken by 13 ... Medical News Today - Medical News Today (press release)

Supraphysiological doses of levothyroxine alter regional cerebral …  -  Feb 22, 2005
Preliminary reports were presented at the Annual Meeting of the American Psychiatric Association (May 5–7, 2001, New Orleans, LA, USA), ... Nature.com

Treatment of Hypothyroidism with Combinations of Levothyroxine plus …  -  Feb 20, 2008
Context: Combined infusion of levothyroxine plus liothyronine, as opposed to ... However, in some of these studies the patients preferred levothyroxine plus ... Journal of Clinical Endocrinology and...

FDA Standards for Levothyroxine Bioequivalence, Substitution May Lead...  -  Oct 2, 2006
Newswise — Levothyroxine sodium (LT4), marketed as Unithroid, Synthroid, Levoxyl, and Levothroid, is the principal form of thyroid hormone replacement taken ... newswise.com

New Potency Requirement for Levothyroxine  -  Oct 5, 2007
The FDA is mandating that levothyroxine sodium drug products tighten their potency specifications to meet 95% to 105% potency specifications until their ... Facts and Comparisons

The levothyroxine spectrum: bioequivalence and cost considerations.( …  -  Aug 1, 2005
Levothyroxine, a critical medication for millions of Americans, has had a long and turbulent history. In the face of tougher FDA regulations and especially ... Free with registration - Formulary - AccessMyLibrary.com

… in Athyreotic Individuals During Levothyroxine Therapy, February...  -  Feb 20, 2008
Thyroidectomy and levothyroxine (LT 4 ) initiation occurred between time points 2 and 3. LT 4 adjustment was made between time points 3 and 4. ... Journal of American Medical Association - Journal of American Medical Association...

Treatment of hypothyroidism with combinations of levothyroxine plus …  -  May 20, 2005
Combined infusion of levothyroxine plus liothyronine, as opposed to ... However, in some of these studies the patients preferred levothyroxine plus ... Journal of Clinical Endocrinology and...

Learn about Levothyroxine from Consumer Reports Health.  -  Jan 8, 2008
Thyroid hormone should not be used to treat obesity in patients with normal thyroid function. ... Full Alert. Levothyroxine, a thyroid hormone, ... consumerreports.org

Levothyroxine Starting Dose in Primary Hypothyroid Treatment  -  Mar 1, 2006
Primary hypothyroidism is a common medical disorder that usually presents secondary to autoimmune thyroiditis. Symptoms of hypothyroidism include fatigue, ... AAFP News Now

Press Release: Mylan's Levothyroxine Sodium Tablets USP Approved as …  -  Jan 3, 2007
Mylan's Levothyroxine Sodium Tablets USP Approved as Generic Equivalent to Levothroid(R). from PR Newswire. Highbeam Research – FREE Trial. Pay-Per-View - PR Newswire - HighBeam Research

Alternative thyroid drug on way - Medsafe  -  Nov 9, 2008
The drug, levothyroxine, helps people with an under-active thyroid gland and is sold in New Zealand in a pharmaceutical branded as Eltroxin, but hundreds of ... Stuff.co.nz

Levothyroxine starting dose in primary hypothyroid treatment.(Tips)  -  Apr 1, 2006
Primary hypothyroidism is a common medical disorder that usually presents secondary to autoimmune thyroiditis. Symptoms of hypothyroidism include fatigue, ... Free with registration - American Family Physician - AccessMyLibrary.com

… FDA Public Meeting on Levothyroxine Sodium Therapeutic Equivalence...  -  May 23, 2005
Phil: What would you do if you were stuck in one place and every day was exactly the same, and nothing that you did mattered? ... Public Citizen - Auto Safety & Consumer...

… : Mylan Restores Availability of Generic Levothyroxine in Florida. ...  -  Feb 8, 2008
Mylan Restores Availability of Generic Levothyroxine in Florida. from PR Newswire. Highbeam Research – FREE Trial. Pay-Per-View - PR Newswire - HighBeam Research

Levothyroxine Reduces Preterm Birth in Euthyroid Women  -  Dec 1, 2006
Clinical Question: Does treatment with levothyroxine improve birth outcomes for pregnant euthyroid women who test positive for thyroid peroxidase antibodies ... AAFP News Now

… Company Comments on Recent FDA Announcement for Levothyroxine …  -  Oct 10, 2007
..."Our company continues to supply the market with Jerome Stevens' Levothyroxine sodium products that meet the new standards today. There is no reason why the ... Free with registration - Business Wire - AccessMyLibrary.com

Patents; GeoPharma reports levothyroxine-related patent  -  Jan 4, 2005
2005 JAN 4 - (NewsRx.com & NewsRx.net) -- GeoPharma, Inc., (GORX) announced that Belcher Pharmaceuticals, Inc., a wholly owned subsidiary of GeoPharma, ... Pay-Per-View - Science Letter - Factiva, from Dow Jones

Substitute thyroid drug by end of month  -  Sep 12, 2008
Eltroxin's principal ingredient, levothyroxine, helps people with an under-active thyroid gland. It is taken by 70000 New Zealanders. ... New Zealand Herald

Patents; GeoPharma reports levothyroxine-related patent  -  Jan 7, 2005
2005 JAN 7 - (NewsRx.com & NewsRx.net) -- GeoPharma, Inc., (GORX) announced that Belcher Pharmaceuticals, Inc., a wholly owned subsidiary of GeoPharma, ... Pay-Per-View - Drug Week - Factiva, from Dow Jones

Management of hypothyroidism during pregnancy  -  Apr 10, 2007
Throughout her pregnancy, the dose of levothyroxine was adjusted ... The patient did not receive levothyroxine therapy for 1 week after the delivery. ... CMAJ

Give levothyroxine separately for best absorption.(Metabolic Disorders...  -  Aug 15, 2008
Give levothyroxine separately for best absorption.(Metabolic Disorders) ... find Family Practice News articles. SAN FRANCISCO -- A few hours' buffer between ... Pay-Per-View - Family Practice News - HighBeam Research

Levothyroxine Dosage and Limitations of Current Bioequivalence …  -  Oct 12, 2006
Precision in the dosing of levothyroxine (LT 4 ) products is guided by sensitive TSH measurements, and is essential to optimize therapeutic outcomes and ... Medscape

… specifications tightened for levothyroxine medications.(NEWS FROM ...  -  Nov 15, 2007
Potency specifications tightened for levothyroxine medications.(NEWS FROM THE FDA) ... find Family Practice News articles. The Food and Drug Administration ... Pay-Per-View - Family Practice News - HighBeam Research

Pharmac fast-tracking new thyroid medication  -  Jan 10, 2008
Pharmac medical director Dr Peter Moodie said yesterday an effort was being made to ensure an advance shipment of the Goldshield brand of levothyroxine was ... Stuff.co.nz

Levothyroxine Sodium Therapeutic Equivalence; Public Meeting  -  Apr 20, 2005
SUMMARY: The Food and Drug Administration (FDA) is announcing a public meeting on the therapeutic equivalence of levothyroxine sodium drug products. ... Pay-Per-View - Federal Register - Factiva, from Dow Jones

Lannett Encouraged By Levothyroxine Development In Florida  -  Feb 13, 2008
Lannett Company, Inc. (AMEX: LCI) said it is encouraged by a legal development in Florida that could remove generic Levothyroxine Sodium from the state's ... Medical News Today - Medical News Today (press release)

… specifications tightened for levothyroxine.(Endocrinology) |...  -  Dec 1, 2007
Potency specifications tightened for levothyroxine.(Endocrinology) ... find Internal Medicine News articles. The Food and Drug Administration has tightened ... Pay-Per-View - Internal Medicine News - HighBeam Research

IVAX to Distribute Levothyroxine Sodium Tablets USP  -  Aug 31, 2005
IVAX Corporation (AMEX:IVX) (LSE:IVX.L) (WSE:IVX) announced today that its wholly owned subsidiary, IVAX Pharmaceuticals, Inc., will distribute in the ... RedOrbit

New and generic drug approvals: Levothyroxine Sodium Tablets. [36 …  -  Dec 19, 2006
On 19 Dec 2006, the US Food and Drug Administration announced approval of ANDA 076187 (new strength) for Levothyroxine Sodium Tablets. ... Pay-Per-View - US Food and Drug Administration News - Factiva, from Dow Jones

Lannet Dismayed By Delay to FDA's Decision  -  Oct 15, 2007
The FDA is tightening the potency specifications for levothyroxine sodium, used to treat ... Jerome Stevens' levothyroxine sodium products meet the new ... RedOrbit

Long-Term Cardiovascular Effects of Levothyroxine Therapy in Young …  -  Apr 29, 2008
Address all correspondence and requests for reprints to: Antonio Cittadini, MD, Department of Internal Medicine and Cardiovascular Sciences, ... Journal of Clinical Endocrinology and...

VET Pharmaceuticals: Levothyroxine sodium tablets.(Small animal)  -  Mar 1, 2005
Levothyroxine Sodium Tablets are available in 250- and 1000-count bottles. For fastest results, call (866) 343-1995 www.vet-pharmaceuticals.com ... Free with registration - DVM Newsmagazine - AccessMyLibrary.com

PRESS RELEASE: Alpharma to Markt First Topical NSAID Patch in the …  -  Aug 21, 2007
Tirosint®, gel capsules containing levothyroxine sodium for thyroid hormone ... Levothyroxine is contraindicated in patients with untreated subclinical or ... FierceBiotech

Smith's expanding $4 drug plan to Utah  -  Feb 13, 2008
It is a different matter for Levothyroxine, a thyroid medicine. A 30-day supply for 200 mcg Levothyroxine would cost $12.95 at Delost's pharmacy, ... $2.95 - Salt Lake Tribune, The - NewsBank

Heska: Levothyroxine sodium tablets.(SMALL ANIMAL)  -  Apr 1, 2005
They contain the proven active ingredient levothyroxine sodium and have equivalent efficacy to other levothyroxine sodium supplements, the company says. ... Free with registration - DVM Newsmagazine - AccessMyLibrary.com

VET Pharmaceuticals: Levothyroxine sodium tablets.(SMALL ANIMAL)  -  Apr 1, 2005
Levothyroxine Sodium Tablets are available in 250- and 1000-count bottles. For fastest results, call (866) 838-1995 www.vet-pharmaceutical.com ... Free with registration - DVM Newsmagazine - AccessMyLibrary.com

Hypothyroidism Treatment - Hypothyroidism Health Information - NY …  -  Jun 17, 2008
Suppressive thyroid therapy involves taking levothyroxine in doses that are high ... Single oral doses of levothyroxine (T4) can usually restore normal ... New York Times

Federal Register 2006 - 71 FR 41027 Joint Meeting of the Endocrinologi...  -  Jul 19, 2006
Agenda: The joint committee will discuss FDA's efforts to assess the product quality of currently marketed levothyroxine sodium drug products. ... Pay-Per-View - Federal Register 2006 - Loislaw

Levothyroxine in euthyroid autoimmune thyroiditis and type 1 diabetes:...  -  Feb 7, 2007
Beate Karges * , Rainer Muche, Ina Knerr, Waldemar Ertelt, Thomas Wiesel, Regine Hub, Andreas Neu, Albrecht Klinghammer, Julia Aufschild, Andrea Rapp, ... Journal of Clinical Endocrinology and...

… may not be needed for hypothyroid.(Metabolic Disorders)(levothyroxi...  -  Sep 15, 2005
Initiating a full starting dose of levothyroxine is safe for hypothyroid patients, and is more convenient and cost effective than working up from a lower ... Pay-Per-View - Family Practice News - Factiva, from Dow Jones

… to Increased Conversion of Administered Levothyroxine in Patients...  -  Apr 8, 2008
One week after withdrawal of levothyroxine, both FT 3 and FT 4 levels decreased. Retrospective measurements of FT 3 in frozen stored sera demonstrated that ... Journal of Clinical Endocrinology and...

Levothyroxine sodium tablets, USP.(NEW GENERICS)(Mylan …  -  Feb 5, 2007
Mylan Laboratories, Pittsburgh, (724) 514-1800, has FDA approval for levothyroxine sodium tablets, USP, a generic alternative to Forest Laboratories' ... $4.95 - Drug Topics - ECNext

Levothyroxine Side Effects from Consumer Reports Health.  -  Jan 8, 2008
Thyroid hormone should not be used to treat obesity in patients with normal thyroid function. ... Full Alert. Thyroid hormone should not be used to treat ... consumerreports.org

Ministry approves alternatives to problem thyroid drug  -  Oct 25, 2008
The levothyroxine drug is is used to treat hypothyroidism, ... "While changing to a new levothyroxine product will resolve many of the problems reported by ... Wanganui Chronicle

Subclinical Thyroid Disease and Cardiovascular Disease  -  Mar 2, 2005
Six months of levothyroxine therapy resulted in a significant decrease of both ... Effect of levothyroxine replacement on lipid profile and intima-media ... Journal of American Medical Association - Journal of American Medical Association...

Medic offers an explanation why keys stop nosebleeds  -  Apr 24, 2008
I am worried now about him insisting I take levothyroxine for my thyroid condition. Is there anything else I can take instead? I absolutely cannot live with ... Youngstown Vindicator

Levothyroxine 'does not harm bones' in DTC patients  -  Jul 29, 2005
Investigators have allayed concerns that long-term levothyroxine (LT 4 ) therapy could have an adverse effect on the bone health of thyroid cancer patients. ... Medwire (subscription)

Triiodothyronine Levels in Athyreotic Individuals During Levothyroxine...  -  Feb 20, 2008
...leading to the suggestion that T 3 deficiency may be unavoidable during levothyroxine (LT 4 ) therapy. However, trials evaluating therapy with combined ... Journal of American Medical Association - Journal of American Medical Association...

… Text in: The Starting Dose of Levothyroxine in Primary Hypothyroidi...  -  Oct 24, 2005
In the Original Investigation by Roos et al titled "The Starting Dose of Levothyroxine in Primary Hypothyroidism Treatment," published in the August 8/22 ... Archives of Internal Medicine

Are levothyroxine drugs substitutable? FDA seeks comments.(public …  -  May 2, 2005
The FDA is holding a public meeting on May 23 to discuss the standards it uses to determine the therapeutic equivalence among levothyroxine sodium drugs. ... Free with registration - Drug Topics - AccessMyLibrary.com

Evaluation of the Adequacy of Levothyroxine Replacement Therapy in …  -  Jan 1, 2008
Institute of Endocrine Sciences (LP, SG, PB-P.), University of Milan, Ospedale Maggiore IRCCS, Istituto Auxologico Italiano IRCCS, and Istituto Clinico ... Journal of Clinical Endocrinology and...

… for hypothyroid.(Metabolic Disorders)(levothyroxine dosage) |...  -  Sep 15, 2005
Metabolic Disorders)(levothyroxine dosage) ... find Family Practice News articles. Initiating a full starting dose of levothyroxine is safe for hypothyroid ... Pay-Per-View - Family Practice News - HighBeam Research

Lannett Company, Inc. Levothyroxine sodium tablets bioequivalent to …  -  Jan 12, 2005
2005 JAN 12 - (NewsRx.com & NewsRx.net) -- According to the US Food and Drug Administration (FDA), the Levothyroxine sodium tablet produced by Lannett ... Pay-Per-View - Biotech Week - Factiva, from Dow Jones

Miscarriage in Women with Positive Anti-TPO Antibodies: Is Thyroxine...  -  Apr 18, 2006
The rationale for deciding to administer 0.5 µg/kg·d of levothyroxine (when serum TSH was < 1 ... Median levothyroxine dosage in group A women was 50 µg/d. ... Journal of Clinical Endocrinology and...

Thyroid Therapy; Levothyroxine sodium tablets bioequivalent to...  -  Jan 13, 2005
2005 JAN 13 - (NewsRx.com & NewsRx.net) -- According to the US Food and Drug Administration (FDA), the Levothyroxine sodium tablet produced by Lannett ... Pay-Per-View - Women's Health Weekly - Factiva, from Dow Jones

Weekly dose of levothyroxine is safe, preferred.(Metabolic Disorders)(...  -  Dec 15, 2008
Weekly dose of levothyroxine is safe, preferred.(Metabolic Disorders)(Brief article) ... find Family Practice News articles. Pay-Per-View - Family Practice News - HighBeam Research

Is the treatment of subclinical hypothyroidism beneficial?  -  Nov 9, 2008
A therapeutic trial of levothyroxine can be initiated in patients who have ... 9, 10 One problem to consider during levothyroxine therapy is the risk of ... Nature.com

Patents; GeoPharma reports levothyroxine-related patent  -  Jan 3, 2005
2005 JAN 3 - (NewsRx.com & NewsRx.net) -- GeoPharma, Inc., (GORX) announced that Belcher Pharmaceuticals, Inc., a wholly owned subsidiary of GeoPharma, ... Pay-Per-View - Biotech Business Week - Factiva, from Dow Jones

Levothyroxine Sodium Therapeutic Equivalence; Public Meeting; …  -  Aug 17, 2005
SUMMARY: The Food and Drug Administration (FDA) is reopening until September 23, 2005, the comment period for the May 23, 2005, public meeting on the ... Pay-Per-View - Federal Register - Factiva, from Dow Jones

Bipolar Disorder; High doses of levothyroxine improve mood in bipolar...  -  Jun 28, 2005
2005 JUN 28 - (NewsRx.com) -- According to a report from Germany, "Supplementation of standard treatment with high-dose levothyroxine (LT-4) is a novel ... Pay-Per-View - Life Science Weekly - Factiva, from Dow Jones

… : Mylan Restores Availability of Generic Levothyroxine in Florida. ...  -  Feb 8, 2008
Mylan Restores Availability of Generic Levothyroxine in Florida. from M2 Presswire. Highbeam Research – FREE Trial. Pay-Per-View - M2 Presswire - HighBeam Research

A treatment strategy for Graves' orbitopathy  -  Sep 13, 2006
Background A 59-year-old woman with a history of nodular goiter developed thyrotoxic symptoms while on levothyroxine therapy. Her thyrotoxicosis persisted ... Nature.com

FATIGUE AND HYPOTHYROIDISM  -  Dec 15, 2005
For both subclinical and primary hypothyroidism, the treatment is simple: a daily dose of synthetic T4 (levothyroxine sodium) in pill form. ... $2.95 - Myrtle Beach Sun News - NewsBank

Warning for Vintage generic drugmaker  -  Feb 20, 2008
In 2001 it was forced to recall lots of levothyroxine because of stability and potency problems. In 2006 Vintage pleaded guilty to felony charges of ... In-PharmaTechnologist.com

Competitors by Product Report  -  Dec 27, 2008
Lannett Company, Inc. (LCI) Products:. Levothyroxine Sodium; Unithroid (Levothyroxine Sodium). Mylan Inc. (MYL) Products:. Levothyroxine Sodium ... $75.00 - Revere - Alacra Store

AACR: Colorectal Risk Cut in Half Among Patients Taking Thyroid Drug  -  Nov 1, 2005
1 - Taking Levothyroxine (L-thyroxine) for at least five years appears to cut the risk for colorectal cancer in half, researchers reported here today. ... MedPage Today

Competitors by Product Report  -  Dec 27, 2008
Lannett Company, Inc. (LCI) Products:. Levothyroxine Sodium; Unithroid (Levothyroxine Sodium). Mylan Inc. (MYL) Products:. Levothyroxine Sodium ... $75.00 - Revere Reports - Revere

Hypothyroidism; Adjusting pre-conception L-T4 dose may yield adequate...  -  Jan 25, 2005
2005 JAN 25 - (NewsRx.com & NewsRx.net) -- For hypothyroid women planning to become pregnant, pre-conception adjustment of their levothyroxine dose may ... Pay-Per-View - Science Letter - Factiva, from Dow Jones

GeoPharma Reports 17% Revenue Increase for Third Quarter.  -  Feb 15, 2005
Levothyroxine Sodium is one of the most prescribed drugs in the United States, ... Commercial production of stabilized levothyroxine sodium liquid has begun ... $4.95 - PR Newswire - ECNext

Some drugs interfere with thyroxine absorption.  -  Dec 1, 2008
..."In most cases, it's believed that malabsorption of levothyroxine is due to ... Within 1 hour of taking levothyroxine alone, subjects displayed a sharp ... Entrepreneur

Some drugs interfere with thyroxine absorption.(Endocrinology) |...  -  Dec 1, 2008
..."In most cases, it's believed that malabsorption of levothyroxine is due to ... Within 1 hour of taking levothyroxine alone, subjects displayed a sharp ... Pay-Per-View - Internal Medicine News - HighBeam Research

FDA panel scrutinizes thyroid drug stability.(Mental Disorders)  -  Nov 15, 2006
A 10% loss in potency over the shelf life of levothyroxine sodium products--the maximum ... Levothyroxine sodium, a drug with a narrow therapeutic index, ... Pay-Per-View - Family Practice News - Factiva, from Dow Jones

Hypothyroidism following hemithyroidectomy for benign nontoxic...  -  May 1, 2007
One result of thyroid suppression therapy with levothyroxine is subclinical ... With fewer patients being placed on levothyroxine during the immediate ... Free with registration - Ear, Nose and Throat Journal - AccessMyLibrary.com

Subclinical thyroid disease.  -  Oct 15, 2005
Patients who are not receiving levothyroxine and who have serum TSH levels ... Physiologic requirements of levothyroxine often increase during pregnancy; ... Free with registration - American Family Physician - AccessMyLibrary.com

Erie Times-News : Front Page<br>  -  Oct 27, 2006
Synthroid Levothyroxine 25mcg tb. Synthroid Levothyroxine 50mcg tb. Synthroid Levothyroxine 75mcg tb. Synthroid Levothyroxine 88mcg tb ... $2.95 - Erie Times-News - NewsBank

Thyroid disease.(Disease/Disorder overview)  -  Mar 1, 2007
Treatment with levothyroxine Levothyroxine is the treatment of choice for ... Levothyroxine treatment is usually maintained for life, with thyroid function ... Free with registration - Update - AccessMyLibrary.com

New Zealand Doctor Online - Medical News for GPs  -  Oct 23, 2008
Dr Jessamine said: "while changing to a new levothyroxine product will ... The existing funded brand of levothyroxine, Eltroxin, will also continue to be ... New Zealand Doctor Online

Is universal screening for thyroid disease in pregnancy a cost...  -  Jul 3, 2008
2 To date, however, no study has evaluated the ability of levothyroxine therapy ... The decision model did not include the positive effect of levothyroxine ... Nature.com

Health-related quality of life—an economist's perspective  -  Apr 1, 2007
9 In the case of thyroid cancer, when rhTSH and levothyroxine withdrawal were compared while checking for residual thyroid tissue with a whole body scan, ... Nature.com

Eltroxin formulation change – Monitor patients and adjust dosing if …  -  Jun 27, 2008
Small changes in dosing of levothyroxine can affect serum thyroid hormone levels. ... Due to the long half life of levothyroxine (5 - 7 days), ... scoop.co.nz

FATIGUE SET IN AFTER THYROID SURGERY  -  Nov 26, 2008
Even though I'm on a large dose of levothyroxine and my TSH levels are perfect, ... To evaluate if you are receiving the correct amount of levothyroxine, ... Pay-Per-View - South Florida Sun - Sentinel - ProQuest Archiver

NO1.뉴미디어 마ì?´ë?°ì?¼ë¦¬  -  May 12, 2008
...갑�선기능저하�� 치료는 부족한 호르모� 대체해주는 약물� 'levothyroxine'� 투여하는 것� 가장 좋으며 �당한 약물 투여량 결정� 위해 주기�� 혈액검사가 ... 마���리

Article: FDA panel scrutinizes thyroid drug stability.(Mental...  -  Nov 15, 2006
A 10% loss in potency over the shelf life of levothyroxine sodium products--the ... A 10% loss in potency over the shelf life of levothyroxine sodium ... Pay-Per-View - Family Practice News - HighBeam Research

Unapproved drug switches risky for thyroid patients, doctors say  -  Jun 8, 2005
Last year, the FDA determined that generic levothyroxine sodium drugs can be ... Instead of measuring the level of levothyroxine in the bloodstream, ... San Diego Union - Tribune - San Diego Union Tribune

Should we treat subclinical hyperthyroidism?  -  Apr 24, 2008
Cases are often iatrogenic and 25% of patients prescribed levothyroxine have low TSH ... Although levothyroxine dose reduction and addition of -adrenergic ... Nature.com

For Thyroid Hormones, How Low Is Too Low?  -  Nov 8, 2005
The most widely prescribed drug is levothyroxine, sold as a generic or under ... The academy also accepts financing from manufacturers of levothyroxine. ... New York Times

Thyroid Nodule - Symptoms, Diagnosis, Treatment of Thyroid Nodule -...  -  Jun 17, 2008
A doctor may prescribe levothyroxine to treat non-cancerous nodules only in ... Levothyroxine does not seem to benefit most people with thyroid nodules. ... New York Times

… Achieve Adequate Hyperthyrotropinemia within 14 Days of Levothyroxi...  -  Aug 1, 2005
Design: Retrospective analysis of fifteen consecutive levothyroxine withdrawals performed without triiodothyronine at Children's Hospital Boston. ... Journal of Clinical Endocrinology and...

… Achieve Adequate Hyperthyrotropinemia within 14 Days of Levothyroxi...  -  Apr 1, 2007
Design: The study design was a retrospective analysis of 15 consecutive levothyroxine withdrawals performed without T 3 at Children's Hospital Boston. ... Journal of Clinical Endocrinology and...

MEDICAL EDGE ASK THE MAYO CLINIC.(Life and Arts) | Article from …  -  Feb 25, 2008
Recently, an endocrinologist prescribed levothyroxine for a slightly underactive thyroid. ... Typically, taking a thyroid supplement, such as levothyroxine, ... Pay-Per-View - Seattle Post-Intelligencer - HighBeam Research

TSH Targets for Patients on Thyroxine.(thyroid-stimulating hormone)  -  Oct 1, 2006
A colleague tells me that I should be adjusting the levothyroxine dosage to keep ... I would not start a patient on lifelong levothyroxine therapy on the ... $4.95 - Consultant - ECNext

Brand Names/Synonyms:
Levothyroxine is also known by the following brand names and/or synonymsD-Thyroxine; Eltroxin; Euthyrox; Iodine; L-T4; L-THYROXIN SODIUM, 99%; L-Thyroxine; L-Thyroxine Sodium; L-Thyroxine Sodium Salt; L-Thyroxine Sodium Salt Hydrate; L-Thyroxine.Na; Laevothyroxinum; Laevoxin; Letter; Levaxin; Levo-T; Levolet; Levothroid; Levothyrox; Levothyroxine; Levothyroxine Sodium; Levoxine; Levoxyl; Novothyrox; Oroxine; Sodium Levothyroxine; Synthroid; Synthroid Sodium; Tetraiodothyronine; Thyratabs; Thyrax; Thyreoideum; Thyro-Tabs; Thyro-Tapbs; Thyroxevan; Thyroxin; Thyroxinal; Thyroxine; Unithroid

Drug Category:
Levothyroxine is categorized under the following by the FDA: Antithyroid Agents; Anticoagulants; ATC:H03AA01

Dosage Forms:
LIQUID; POWDER; TABLET

Absorption:
Varies from 48% to 80%

Interactions:
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Chemical IUPAC Name:
2-amino-3-[4-(4-hydroxy-3,5-diiodo-phenoxy)-3,5-diiodo-phenyl]-propanoicacid





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