Synthroid (Levothyroxine Sodium)
Synthroid
25mcg Tablet
Prescription required. May be split. Product of New Zealand. Shipped from New Zealand.
Synthroid
50mcg Tablet
more info
Prescription required. May be split. Product of Canada. Shipped from Canada.
Synthroid
75mcg Tablet
more info
Prescription required. May be split. Product of Canada. Shipped from Canada.
Synthroid
88mcg Tablet
more info
Prescription required. May be split. Product of Canada. Shipped from Canada.
Synthroid
100mcg Tablet
more info
Prescription required. May be split. Product of Canada. Shipped from Canada.
Synthroid
112mcg Tablet
more info
Prescription required. May be split. Product of Canada. Shipped from Canada.
Synthroid
125mcg Tablet
more info
Prescription required. May be split. Product of Canada. Shipped from Canada.
Synthroid
137mcg Tablet
more info
Prescription required. May be split. Product of Canada. Shipped from Canada.
Synthroid
150mcg Tablet
more info
Prescription required. May be split. Product of Canada. Shipped from Canada.
Synthroid
175mcg Tablet
more info
Prescription required. May be split. Product of Canada. Shipped from Canada.
Synthroid
200mcg Tablet
more info
Prescription required. May be split. Product of Canada. Shipped from Canada.
Synthroid
300mcg Tablet
more info
Prescription required. May be split. Product of Canada. Shipped from Canada.
Generic equivalents for Synthroid... What are generics?
Levothyroxine Sodium
25mcg Tablet
Prescription required. May be split. Product of UK/EU. Shipped from United Kingdom of Great Britain and Northern Ireland.
Levothyroxine Sodium
50mcg Tablet
Prescription required. May be split. Product of UK/EU. Shipped from United Kingdom of Great Britain and Northern Ireland.
Levothyroxine Sodium
75mcg Tablet
Prescription required. May be split. Product of UK/EU. Shipped from United Kingdom of Great Britain and Northern Ireland.
Levothyroxine Sodium
100mcg Tablet
Prescription required. May be split. Product of India. Shipped from Mauritius.
Levothyroxine Sodium
200mcg Tablet
Prescription required. May be split. Product of India. Shipped from Mauritius.
To comply with Canadian International Pharmacy Association regulations you are permitted to order a 3-month supply or the closest package size available based on your personal prescription. read more
Levothyroxine Sodium Information
(lee voe thye rox' een)
Thyroid hormone should not be used to treat obesity in patients with normal thyroid function. Levothyroxine is ineffective for weight reduction in normal thyroid patients and may cause serious or life-threatening toxicity, especially when taken with amphetamines. Talk to your doctor about the potential risks associated with this medication.-
Before taking levothyroxine,
- tell your doctor and pharmacist if you are allergic to levothyroxine, thyroid hormone, any other medications, or any of the ingredients in levothyroxine. Ask your pharmacist for a list of the ingredients.
- tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take. Be sure to mention any of the following: amiodarone (Cordarone, Pacerone); amphetamines; anticoagulants ('blood thinners') such as warfarin (Coumadin); aspirin or aspirin-containing products and other nonsteroidal anti-inflammatory drugs; beta-blockers such as metoprolol (Lopressor), propranolol (Inderal) or timolol (Timoptic); carbamazepine (Equetro, Tegretol); corticosteroids such as dexamethasone; digoxin (Lanoxin); estrogens; furosemide (Lasix); imatinib (Gleevac); insulin or other medications to treat diabetes; lithium (Lithobid); maprotiline; oral contraceptives; phenobarbital; phenytoin (Dilantin, Phenytek); rifampin (Rifater, Rifamate, Rifadin); selective serotonin reuptake inhibitors (SSRIs) such as sertraline (Zoloft); theophylline (TheoDur); and tricyclic antidepressants such as amitriptyline (Elavil). Many other medications may also interact with levothyroxine, so be sure to tell your doctor about all the medications you are taking, even those that do not appear on this list. Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
- if you take an antacid, calcium carbonate (Tums), cholestyramine (Questran), colesevelam (Welchol), colestipol (Colestid), iron, orlistat (Alli, Xenical), simethicone (Phazyme, Gas X), sevelamer (Renvela, Renagel), sodium polystyrene sulfonate (Kayexalate), or sucralfate (Carafate), take it at least 4 hours before or 4 hours after you take levothyroxine.
- tell your doctor if you have or have ever had diabetes; hardening of the arteries (atherosclerosis); kidney disease; liver disease or hepatitis; bleeding problems; porphyria (condition in which abnormal substances build up in the blood and cause problems with the skin or nervous system); cardiovascular disease such as high blood pressure, chest pain (angina), arrhythmias, or heart attack; an underactive adrenal or pituitary gland, or any condition that makes it difficult for you to swallow.
- tell your doctor if you are pregnant, plan to become pregnant or are breast-feeding. If you become pregnant while taking levothyroxine, call your doctor.
- if you have surgery, including dental surgery, tell the doctor or dentist that you are taking levothyroxine.
- weight loss
- tremor
- headache
- nausea
- vomiting
- diarrhea
- stomach cramps
- nervousness
- irritability
- insomnia
- excessive sweating
- increased appetite
- fever
- changes in menstrual cycle
- sensitivity to heat
- temporary hair loss, particularly in children during the first month of therapy
- chest pain (angina)
- rapid or irregular heartbeat or pulse
The content on this page is for informational and educational purposes only and does not constitute professional medical advice. Patients should not use the information presented on this page for diagnosing a health-related issue or disease. Before taking any medication or supplements, patients should always consult a physician or qualified healthcare professional for medical advice or information about whether a drug is safe, appropriate or effective.