Generic Name: levothyroxine (LEE voe thye ROX een brand Names: Levoxyl, Synthroid, Tirosint, Unithroid, medically reviewed on December 6, 2017. Synthroid (levothyroxine) is a thyroid medicine that replaces a hormone synthroid side effects synthroid side effects normally produced by your thyroid gland to regulate the body's energy and metabolism. Levothyroxine is given when side affects of synthroid the thyroid does not produce enough of this hormone on its own. Synthroid treats hypothyroidism (low thyroid hormone). Synthroid is also used to treat side affects of synthroid or prevent goiter (enlarged thyroid gland), which can be synthroid results caused by hormone imbalances, radiation treatment, surgery, or cancer. You may not be able to take Synthroid if you have certain medical conditions. Tell your doctor if you have an synthroid side effects untreated or uncontrolled adrenal gland disorder, a thyroid disorder called thyrotoxicosis, or if you have any recent or current symptoms of a heart attack. Synthroid should not be used to treat obesity side affects of synthroid or weight problems. Before taking this medicine, synthroid 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. Since thyroid hormone occurs naturally in the body, almost anyone can take levothyroxine. However, you may not be able to take this medicine if you have certain medical conditions. Tell your doctor if you have: an untreated or uncontrolled adrenal gland disorder; a thyroid disorder called thyrotoxicosis; or symptoms of a heart attack (chest pain or heavy feeling, pain spreading to the jaw or shoulder, nausea, sweating, general ill feeling). To synthroid results make sure Synthroid is safe for you, tell your doctor if you have ever had: heart disease, coronary artery disease, a heart attack, or a blood side affects of synthroid clot; diabetes (insulin or oral diabetes medication doses may need to be changed when you start taking levothyroxine. Tell your doctor if you have recently received radiation therapy with iodine (such as side affects of synthroid I-131). Levothyroxine is not expected to harm an unborn baby. If you become pregnant while taking Synthroid, do not stop taking the medicine without your doctor's advice. Having low thyroid hormone levels during pregnancy could harm both mother and baby. Your dose needs may be different during pregnancy. Levothyroxine can pass into breast milk, but synthroid and cancer risk it is not expected to be harmful to a nursing baby. Tell your doctor if you are breast-feeding. Your dose needs may be different while you are nursing. Do not give this medicine to a child without medical advice. Tirosint is not approved for use by anyone younger than 6 years old. How should I take Synthroid?
Amiodarone -antacids -anti-thyroid medicines -calcium supplements -carbamazepine -certain medicines for depression -certain medicines to treat cancer -cholestyramine -clofibrate -colesevelam -colestipol -digoxin -female hormones, like estrogens or progestins and birth control pills, patches, rings, or injections -iron supplements -kayexylate -ketamine -liquid nutrition products like Ensure -lithium. This list may not buy synthroid 75 mcg describe all buy synthroid 75 mcg possible interactions. Give your health care provider a list of buy synthroid 75 mcg all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine. Facts and Uses of Synthroid, before taking any medication, you need to know your health status by having a test. It is also important to consult a doctor of the symptoms that you are having. Some symptoms may be similar to different diseases. Additionally, you need to have knowledge of the disease you are suffering from and the measures that you should take. Some medications are not suitable for certain foods or situations in a person. Thus you need to know them. Synthroid is a medication that is used to treat hypothyroidism. The medication is normally prescribed by a specialist when they have taken a test and found out that you are suffering from hypothyroidism. It does contain levothyroxine sodium which is its active ingredient. Its alternative name is levothyroxine. It is artificially made in the laboratory, and its main therapeutic effect is to help in balancing the thyroid hormone. The thyroid hormone is secreted by the thyroid glands, and their levels can fluctuate, leading to hypothyroidism. Levothyroxine is, therefore, an artificial thyroid hormone and thus can be used to treat an enlarged thyroid gland a condition normally termed as goiter. Directions on the Use of Synthroid. Levothyroxine should not be taken without doctor's prescription and directions. The dosage to be taken may vary according to the level of thyroid hormones that your glands can produce. The drug should be taken when you have not has any meal for better absorption. It is recommended therefore to take the drug just buy synthroid 75 mcg before meals approximately 30 minutes to one hour. All the instructions given by the doctor should be followed strictly. Additionally, consistency in time of taking the drug should be always observed. The drug should always be stored in cool and dry place.
Medically reviewed on November 6, 2017. Applies to the following strengths: 25 mcg (0.025 mg 50 mcg (0.05 mg 75 mcg (0.075 mg 100 mcg (0.1 mg 125 mcg (0.125 mg 150 mcg (0.15 mg 200 mcg (0.2 mg 300 mcg (0.3 mg 500 mcg (0.5 mg 88 mcg (0.088. Usual Adult maximum dose of synthroid Dose maximum dose of synthroid for: Usual Geriatric Dose for: Usual Pediatric Dose for: Additional dosage information: Usual Adult Dose for Hypothyroidism -hypothyroidism IN adults AND IN children IN whom growth AND puberty ARE complete : Therapy may begin at full replacement doses in otherwise healthy individuals. Older patients maximum dose of synthroid may require less than 1 mcg/kg/day. Doses greater than 200 mcg/day orally are seldom required. An inadequate response to oral daily doses of 300 mcg/day or greater is maximum dose of synthroid rare and may indicate poor compliance, malabsorption, and/or drug interactions -FOR most patients older than 50 years OR FOR patients under 50 years OF AGE maximum dose of synthroid with underlying cardiac disease : -Initial dose. Comments : -The dose should be individualized on the basis of clinical response and biochemical tests. Regular monitoring of TSH and thyroxine is recommended when starting therapy or changing the dose. This drug should be taken maximum dose of synthroid in the morning on an empty stomach with water, at least one-half hour before any food is eaten. This drug should be taken at least 4 hours apart from drugs that are known to interfere with its absorption. The peak therapeutic effect of this drug may not be attained for 4 to 6 weeks. Use: As replacement or supplemental therapy in congenital or acquired hypothyroidism of any etiology, except transient hypothyroidism during the recovery phase of subacute thyroiditis. Specific indications include: primary (thyroidal secondary (pituitary and tertiary (hypothalamic) hypothyroidism and subclinical hypothyroidism. Primary hypothyroidism may result from functional deficiency, primary atrophy, partial or total congenital absence of the thyroid gland, or from the effects of surgery, radiation, or drugs, with or without the presence of goiter. Usual Adult Dose for TSH Suppression. TSH suppression IN well-differentiated thyroid cancer AND thyroid nodules : -The target level for TSH suppression in these conditions has not been established. The efficacy of TSH suppression for benign nodular disease is controversial. Therefore, the dose of this drug used for TSH suppression should be individualized based on the specific disease and the patient being treated. In the treatment of well differentiated (papillary and follicular) thyroid cancer, this drug is used as an adjunct to surgery and radioiodine therapy. Generally, TSH is suppressed to less than.1 international units per liter (mU/L and this usually requires a dose of greater than 2 mcg/kg/day. However, in patients with high-risk tumors, the target level for TSH suppression may be less than.01 mU/L. In the treatment of benign nodules and nontoxic multinodular goiter, TSH is generally suppressed to a higher target (e.g.,.1.5 mU/L for nodules and.5.0 mU/L for multinodular goiter) than that used for the treatment of thyroid cancer. This drug is contraindicated if the serum TSH is already suppressed due to the risk of precipitating overt thyrotoxicosis. Usual Adult Dose for Myxedema Coma. Myxedema coma is a life-threatening emergency characterized by poor circulation and hypometabolism, and may result in unpredictable absorption of the oral dosage form of this drug from the. Only the IV dosage form should be used for this condition : IV : -Initial loading dose: 300 to 500 mcg IV -Maintenance dose: 50 and 100 mcg IV, until the patient can tolerate oral therapy. Comment: -The age, general physical condition, cardiac risk factors, and severity of myxedema and duration of myxedema symptoms should be considered when determining the starting and maintenance dosages. Use: Myxedema coma, usual Geriatric Dose for Hypothyroidism, elderly patients with cardiac disease : -Initial dose:.5 to 25 mcg orally per day, with gradual dose increments at 4 to 6 week intervals -The dose is generally adjusted.5 to 25 mcg increments until. Usual Pediatric Dose for Hypothyroidism congenital OR acquired hypothyroidism: -Neonatal: 10 to 15 mcg/kg/day; if patient is at risk for development of cardiac failure, begin with a lower dose. In severe cases of hypothyroidism (T4 less than 5 mcg/dL a higher initial dose of 12 to 17 mcg/kg/day may be considered. Age 0 to 3 months: 10 to 15 mcg/kg orally once per day; if the infant is at risk for development of cardiac failure use a lower starting dose of approximately 25 mcg per day; if the initial serum T4 is very low (less than. Comments : -Therapy should be instituted at full replacement doses as soon as possible. Delays in diagnosis and institution of therapy may have deleterious effects on intellectual and physical growth and development. Undertreatment and overtreatment should be avoided -For infants and children who cannot swallow intact tablets, the tablet may be crushed and suspended in 5 to 10 mL or 1 to 2 teaspoonfuls of water. This suspension can be administered by spoon or dropper. Foods that decrease absorption of this drug, such as soybean infant formula, should not be used for administering this drug. Hyperactivity in older children may be minimized by starting at one-quarter of the recommended dose and increasing each week by that amount until the full dose is achieved (4 weeks). Renal Dose Adjustments No adjustment recommended. Thyroid function tests may be influenced by renal impairment.