The below information on Unithroid has been taken from official FDA sources, but we cannot guarantee it's accuracy. Please use this site for educational purposes only. This site does not replace a proper discussion with your doctor.
|This drug was approved by the FDA in one form or another on:|
|This drug is made in one form or another by the following companies:|
Jerome Stevens Pharmaceuticals, Inc.
|This drug is available in the following forms:|
|View the actual FDA approved label for this drug at the following links:|
Unithroid, a synthetic thyroid hormone may be given in any of the following cases:
If your own thyroid gland is not making enough hormone;
If you have an enlarged thyroid (a goiter) or are at risk for developing a goiter;
If you have certain cancers of the thyroid;
If your thyroid production is low due to surgery, radiation, certain drugs, or disease of the pituitary gland or hypothalamus in the brain.
Precautions for Unithroid
Levothyroxine has a narrow therapeutic index. Regardless of the indication for use, careful dosage titration is necessary to avoid the consequences of over- or under-treatment. These consequences include, among others, effects on growth and development, cardiovascular function, bone metabolism, reproductive function, cognitive function, emotional state, gastrointestinal function, and on glucose and lipid metabolism.
Side Effects of Unithroid
Side effects from Unithroid, other than overdose symptoms, are rare. People who are treated with Unithroid may initially lose some hair, but this effect is usually temporary. You may have an allergic reaction such as a rash or hives. Children may have an increase in pressure within the skull. Excessive dosage or a too rapid increase in dosage may lead to overstimulation of the thyroid gland. Notify your doctor immediately if you develop any if the following symptoms.
- Symptoms of overstimulation:
Abdominal cramps, anxiety, changes in appetite, change in menstrual periods, chest pain, diarrhea, emotional instability, fatigue, fever, flushing, hair loss, headache, heart attack or failure, heat intolerance, hyperactivity, increased heart rate, irregular heartbeat, irritability, muscle weakness, nausea, nervousness, palpitations, shortness of breath, sleeplessness, sweating, tremors, vomiting, weight loss
Who Should Not Take Unithroid
You should not be treated with Unithroid if you are hypersensitive to thyroid hormone; your thyroid gland is making too much thyroid hormone; you have had a recent heart attack; or your adrenal glands are not making enough corticosteroid hormone. If you are sensitive to dyes, you can take the Unithroid 50-microgram tablet, which is made without color additives.
Although Unithroid will speed up your metabolism, it is not effective as a weight-loss drug and should not be used as such. An overdose may cause life-threatening side effects, especially if you take Unithroid with an appetite-suppressant medication.
Interactions with Unithroid
Unithroid can interact with a wide variety of medications. It's advisable to check with your doctor before taking any other drug, but you should be especially wary of the following:
Androgens (male hormones)
Antacids and anti-gas medications
Antidepressants such as Elavil, Ludiomil, and Zoloft
Blood pressure drugs such as beta blockers, nitroprusside, and thiazide diuretics
Blood-thinning drugs such as Coumadin and heparin
Chloral hydrate (a sedative)
Diabetes drugs such as insulin and Micronase
Digitalis-type drugs such as Lanoxin
Estrogen products and oral contraceptives
Hormone inhibitors such as Cytadren and Tapazole
Lithium (Eskalith, Lithobid)
Methadone and heroin
Nonsteroidal anti-inflammatory drugs such as phenylbutazone and aspirin
Parkinson's drugs such as Sinemet
Propylthiouracil (a thyroid inhibitor)
Seizure medications such as Dilantin, Tegretol, and phenobarbital
Steroids such as dexamethasone and hydrocortisone
Stimulants such as epinephrine (EpiPen)
The cancer drugs 5-fluorouracil, 6-mercaptopurine, mitotane, and tamoxifen
The cholesterol-lowering drugs Colestid, Mevacor, and Questran
The immune-system drugs interferon and interleukin
The tranquilizers Trilafon and Valium
The tuberculosis drugs aminosalicylate, rifampin, and ethionamide
A high-fiber diet, soy-containing supplements, and walnuts can also interfere with Unithroid effects.
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