The relative bioavailability of Levothroid tablets, compared to an equal nominal dose of oral levothyroxine sodium solution, is approximay 94%. In addition, many drugs and foods affect T4 absorption (see PRECAUTIONS, Drug Interactions and Drug-Food Interactions).
Many drugs affect thyroid hormone pharmacokinetics and metabolism (e.g., absorption, synthesis, secretion, catabolism, protein binding, and target tissue response) and may alter the therapeutic response to Levothroid. A listing of drug-thyroidal axis interactions is contained in Table 2. In addition, thyroid hormones and thyroid status have varied effects on the pharmacokinetics and actions of other drugs.
TSH, in turn, is the physiologic stimulus for the synthesis and secretion of thyroid hormones, L-thyroxine (T 4 ) and L-triiodothyronine (T 3 ), by the thyroid gland.
Learn about Levothroid (Levothyroxine Sodium) may treat, uses, dosage, side effects, drug interactions, warnings, patient labeling, reviews, and related.
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
Therefore, it is recommended that patients receiving levothyroxine sodium be given the minimum dose necessary to achieve the desired clinical and biochemical response. The increased bone resorption may be associated with increased serum levels and urinary excretion of calcium and phosphorous, elevations in bone alkaline phosphatase and suppressed serum parathyroid hormone levels.
Levothyroxine is used to treat an underactive thyroid (hypothyroidism). It replaces or provides more thyroid hormone, which is normally produced by the thyroid gland. Low thyroid hormone levels can occur naturally or when the thyroid gland is injured by radiation/medications or removed by surgery.
Subscribe to the Men's Health newsletter for the latest on disease prevention, fitness, sex, nutrition, and more from WebMD.
See what your medical symptoms could mean, and learn about possible conditions. Drugs & Supplements.
Laboratory and/or medical tests (such as thyroid function tests) should be performed periodically to monitor your progress or check for side effects. Consult your doctor for more details.
However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching /swelling (especially of the face/ tongue /throat), severe dizziness, trouble breathing.
Levothroid (levothyroxine sodium) is a replacement for a hormone that is normally produced by your thyroid gland to regulate the body's energy and metabolism used to treat hypothyroidism (low thyroid hormone).
Seizures have been reported rarely with the institution of levothyroxine therapy.
Read the Levothroid User Reviews »
Central nervous system: headache, hyperactivity, nervousness, anxiety, irritability, emotional lability, insomnia ;
oval, green, imprinted with LEVOXYL, dp 300.
round, peach, imprinted with 3919 V.
round, green, imprinted with JSP, 523.
round, green, imprinted with FLINT, 88.
home drugs a-z list levothroid (levothyroxine sodium) side effects drug center.
oval, turquoise, imprinted with LEVOXYL, dp 175.
round, blue, imprinted with LOGO, 150.
round, green, imprinted with LOGO, 88.
round, white, imprinted with SYNTHROID, 50.
Cardiovascular: palpitations, tachycardia, arrhythmias, increased pulse and blood pressure, heart failure, angina, myocardial infarction, cardiac arrest ; Respiratory: dyspnea ;
oblong, pink, imprinted with T 4, 200.
oblong, dark green, imprinted with M, L 14.
peanut, white, imprinted with LEVOXYL, dp 50, dp 59.
2017 by RxList Inc.
Physician reviewed Levothroid patient information - includes Levothroid description, dosage and directions.
anemia (lack of red blood cells);
Generic Name: levothyroxine (LEE voe thye ROX een) Brand Name: Levothroid, Levoxyl, Synthroid, Tirosint, Unithroid.
l any doctor or dentist who treats you that you are using levothyroxine.
Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose. Take the missed dose as soon as you remember.
Levothyroxine should not be used to treat obesity or weight problems. Dangerous side effects or death can occur from the misuse of levothyroxine, especially if you are taking any other weight-loss medications or appetite suppressants.
The easiest way to lookup drug information, identify pills, check interactions and set up your own personal medication records.