Buy Synthroid Online USA
Synthroid (Levothyroxine) 25 | 50 | 75 | 100 | 125 | 200mg
Generic name: Levothyroxine
What is Synthroid?: Synthroid is a thyroid medicine that replaces a hormone normally produced by your thyroid gland to regulate the body’s energy and metabolism.
Synthroid is a prescription medicine used to treat hypothyroidism (low thyroid hormone). Levothyroxine is given when your thyroid does not produce enough of this hormone on its own.
Synthroid is also used in patients who need surgery and radioiodine therapy to manage a type of thyroid cancer called well-differentiated thyroid cancer.
Before taking Synthroid (Levothyroxine)
Synthroid should not be used to treat obesity or weight problems. Misuse of levothyroxine can cause dangerous side effects, especially if you are taking other weight loss medications or appetite suppressants. Almost anyone can take levothyroxine because thyroid hormones are produced naturally by the body. However, if you have certain medical conditions, you may not be able to take this medication. To make sure that Synthroid is safe for you, tell your doctor if you have ever had:
- 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).
- A thyroid nodule;
- Heart problems such as a heart attack, stroke, blood clot or blood clotting disorder;
- Diabetes (your diabetes medicine may need to be adjusted);
- Anemia (low red blood cells);
- Weak bones (osteoporosis), or low bone mineral density;
- Problems with your pituitary gland;
- Any food or drug allergies;order such as sickle cell anemia, multiple myeloma, or leukemia;
- Plan to have surgery;
- Recently received radiation therapy with iodine (such as I-131); or
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.
Tell your doctor if you are breast-feeding. Your dose needs may be different while you are nursing.
How to take Levothyroxine (Synthroid) Correctly | Side Effects All Patients Need to Know
How should I take Synthroid (Levothyroxine)?
Take your Synthroid exactly as prescribed. Follow all instructions on the prescription label and read all medication guides and instructions. Your doctor may change your dose from time to time.
Synthroid is most effective when taken on an empty stomach 30 to 60 minutes before breakfast. Follow your doctor’s dosing instructions and take your pills at the same time each day.
For infants and children who are unable to swallow whole tablets, the tablets can be crushed and the freshly crushed tablets mixed with a small amount (5-10 mL or 1-2 teaspoons) of water and immediately misted with a spoon or dropper. Do not store the crushed tablets and water mixture or administer it mixed with foods that reduce the absorption of levothyroxine, such as soy-based infant formula.
Levothyroxine dosages are based on the child’s weight. As the child gains or loses weight, the required dose may change.
It may take several weeks for the body to begin to respond to Synthroid. Continue to use this medication even if you feel well. You may need to take Synthroid for the rest of your life.
You may need frequent medical tests. Tell the doctor, dentist, or surgeon treating you that you are using Synthroid.
Store at room temperature away from moisture and heat.
Do not share this medication with others, even if they have the same symptoms as you.
What happens if I miss a dose?
Take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
Overdose symptoms may include headache, leg cramps, tremors, feeling nervous or irritable, chest pain, shortness of breath, and fast or pounding heartbeats.
What to avoid
Avoid the following food products, which can make your body absorb less levothyroxine: grapefruit juice, infant soy formula, soybean flour, cotton seed meal, walnuts, and high-fiber foods.
Synthroid (Levothyroxine) side effects
Get emergency medical help if you have signs of an allergic reaction to Synthroid: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have:
- Fast or irregular heartbeats;
- Chest pain, pain spreading to your jaw or shoulder;
- Shortness of breath;
- Fever, hot flashes, sweating;
- Tremors, or if you feel unusually cold;
- Weakness, tiredness, sleep problems (insomnia);
- Memory problems, feeling depressed or irritable;
- Headache, leg cramps, muscle aches;
- Feeling nervous or irritable;
- Dryness of your skin or hair, hair loss;
- Irregular menstrual periods; or
- Vomiting, diarrhea, appetite changes, weight changes.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What other drugs will affect Synthroid?
Many other medicines can be affected by your thyroid hormone levels. Certain other medicines may also increase or decrease the effects of Synthroid.
Certain medicines can make levothyroxine less effective if taken at the same time. If you use any of the following drugs, avoid taking them within 4 hours before or 4 hours after you take Synthroid:
- Calcium carbonate (Alka-Mints, Caltrate, Os-Cal, Oyster Shell Calcium, Rolaids Soft Chew, Tums, and others);
- Cholestyramine, colesevelam, colestipol;
- Derrous sulfate iron supplement;
- Sodium polystyrene sulfonate (Kalexate, Kayexalate, Kionex);
- Stomach acid reducers – esomeprazole, lansoprazole, omeprazole, rabeprazole, Nexium, Prilosec, Prevacid, Protonix, Zegerid, and others; or
- Antacids that contain aluminum or magnesium – Gaviscon, Maalox, Milk of Magnesia, Mintox, Mylanta, Pepcid Complete, and others.
Synthroid (Levothyroxine) User Reviews
“Synthroid saved my life… I have been taking it for almost 4 years now. I had all of the worst symptoms basically like a dead thyroid. I got better within a week of taking it and continued to feel better and better every day for about 6 months after that. For the next 6 months or so, I felt better and better every day. It took me about a year to lose all the weight I had gained because of my thyroid. After taking Synthroid, the weight came off quickly, I take 225 Mcg a day and have had very few side effects… So few that I can’t remember what the side effects are at the moment.”Robert
“I am so sorry to read about all of the terrible experiences some people have had. I can only tell you about my situation. I had my thyroid removed about 5 years ago. It was absolutely right and necessary for me. I am currently taking 88mcg of Synthroid daily. It is working very well for me. I am very sensitive to medications, so my doctor opted to start me on a low dose and check my levels monthly until I had “normal” results. It took several months. Now I get tested every year and I am very concerned about my condition. My doctor is very understanding. Find a good doctor. This medication has worked very well for me. I am able to maintain a healthy weight, my hair is not falling out, my nails are stronger and I have more energy. My other test results are also good. I hope it will be of help to someone.”RDano
“I’ve only been taking Levothyroxine drug for four days, but already my mood has changed dramatically. My depression was terrible and my intolerance to cold was bone-chilling. I’m hoping things will continue to get better. So far, I’m feeling great.”Anonymous
Synthroid (Levothyroxine) Alternatives Compared
|Armour Thyroid (thyroid desiccated)
|Synthroid replaces missing thyroxine and is used to treat hypothyroidism and other conditions associated with low thyroid hormone levels. The required dosage varies from person to person.
Prescribed for Hashimoto’s disease, Underactive Thyroid, Hypothyroidism – After Thyroid Removal, TSH Suppression, Thyroid Suppression Test, Myxedema Coma.
Synthroid may also be used for purposes not listed in this comparison guide.
|Levothyroxine replaces deficient thyroxine and is the preferred drug for treating hypothyroidism. The dose of levothyroxine must be adjusted for each individual, and there is a fine line between too much thyroxine and harmful side effects and too little and reduced function. It is prescribed for Hashimoto’s disease, hypothyroidism, hypothyroidism – post thyroidectomy, TSH suppression, thyroid suppression studies, and myxoedema coma. Levothyroxine may also be used for purposes not listed in this comparative guide.
|Prescribed for Hashimoto’s disease, hypothyroidism, hypothyroidism – post-thyroidectomy, TSH suppression, and thyroid cancer. Armour Thyroid may also be used for purposes not listed in this comparative guide.
|Lower-cost generic is available
|Lower-cost generic is available
|Lower-cost generic is available
|Ratings & Reviews
|Synthroid has an average rating of 6.0 out of 10 from a total of 190 ratings on Drugs.com. 50% of reviewers reported a positive effect, while 36% reported a negative effect.
|Levothyroxine has an average rating of 5.1 out of 10 from a total of 870 ratings on Drugs.com. 41% of reviewers reported a positive effect, while 47% reported a negative effect.
|Armour Thyroid has an average rating of 6.4 out of 10 from a total of 250 ratings on Drugs.com. 53% of reviewers reported a positive effect, while 31% reported a negative effect.
Dr Ulrike Thieme
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