Synthroid Information - Side Effects, Drug Interactions, Conditions
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Synthroid

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Most Commonly Used
Drug Image file DrugItem_4243.JPG
Synthroid 75mcg Tab
AbbVie US LLC formerly Abbott Pharmaceutical Product Division
Pill Identification: SYNTHROID  |  75
Drug Image file DrugItem_10684.JPG
Synthroid 100mcg Tab
AbbVie US LLC formerly Abbott Pharmaceutical Product Division
Pill Identification: SYNTHROID  |  100
Drug Image file DrugItem_6005.JPG
Synthroid 50mcg Tab
AbbVie US LLC formerly Abbott Pharmaceutical Product Division
Pill Identification: SYNTHROID  |  50
Drug Image file DrugItem_6006.JPG
Synthroid 125mcg Tab
AbbVie US LLC formerly Abbott Pharmaceutical Product Division
Pill Identification: SYNTHROID  |  125
Drug Image file DrugItem_4253.JPG
Synthroid 88mcg Tab
AbbVie US LLC formerly Abbott Pharmaceutical Product Division
Pill Identification: SYNTHROID  |  88
Overview Information on Synthroid
Pharmacist Tip
Do not take Synthroid with food. It can interfere with the drug's effectiveness. Take it on an empty stomach with a full glass of water. This can help keep the tablet from getting stuck in your throat. The best time to take it is usually first thing in the morning.     
Synthroid® is a replacement for a hormone produced by the thyroid gland. Synthroid is used to treat hypothyroidism, a condition in which the body doesn't produce enough thyroid hormone on its own. Doctors also prescribe Synthroid to treat goiter (enlarged thyroid gland). Synthroid is also prescribed as an add-on therapy in the treatment of thyroid cancer.

Synthroid is a brand name for levothyroxine. Synthroid is available as tablets.

Synthroid is not interchangeable with other levothyroxine medicines. Your body may react a little differently to one brand of levothyroxine than another. This is also true if you change from the generic form, levothyroxine, to the brand name Synthroid. Never switch this medicine without your doctor's consent. Your doctor will want to monitor your thyroid levels to make sure they are right for your condition. Take Synthroid exactly as your doctor has told you to.

Synthroid replaces a hormone the body makes on its own. Most people can take it safely. However, your doctor will want to know if you have any other medical condition, so he or she can make sure Synthroid is the right medicine for you. These include:
  • Diabetes
  • Heart disease, heart attack, or chest pain
  • Kidney disease
  • Liver disease
  • Osteoporosis
  • Clotting problems
  • Adrenal or pituitary gland problems
  • A thyroid condition called thyrotoxicosis
Tell your doctor if you are pregnant or breast-feeding. If you become pregnant while taking Synthroid, notify your doctor. Synthroid is generally considered safe during pregnancy and is not known to harm a nursing baby, but your doctor may need to adjust your Synthroid dose.

If you have diabetes, talk to your doctor about how Synthroid might affect your blood sugar levels. Your doctor may want to make adjustments to your diabetes medicines and ask that you monitor your blood sugar levels closely.

Synthroid can sometimes cause interactions with other medicines. These include over-the-counter medicines, such as antacids. Tell your doctor about any medicine you take, including over-the-counter medicines, herbal supplements, vitamins, and other supplements. Your doctor will want to know about any medicine that you take.

Synthroid can cause some side effects. If any side effect of Synthroid is severe, is worrying you, or does not go away, let your doctor know right away. Some side effects when taking Synthroid include:
  • Fatigue
  • Changes in appetite, weight loss, or weight gain
  • Tremor or shakiness
  • Headache
  • Nausea or vomiting
  • Diarrhea, vomiting, or stomach cramps
  • Nervousness or irritability
  • Trouble sleeping
  • Excessive sweating
  • Fever
  • Changes in menstrual cycle
  • Sensitivity to heat
  • Temporary hair loss
This is not a complete list of side effects of Synthroid. Talk with your doctor about these or any side effects you notice while taking Synthroid.

More serious symptoms may require immediate care. Get help right away for more serious signs such as:
  • Chest pain (angina)
  • Fast or irregular heartbeat
  • Signs of an allergic reaction: hives; trouble breathing; swelling of the face, neck, mouth, or tongue


Clinical Review by Jodi Grimm, RPh and Ann Ciemnoczolowski, MS, ELS on May 15, 2013
Synthroid® is a replacement for a hormone produced by the thyroid gland. Synthroid is used to treat hypothyroidism, a condition in which the body doesn't produce enough thyroid hormone on its own. Doctors also prescribe Synthroid to treat goiter (enlarged thyroid gland). Synthroid is also prescribed as an add-on therapy in the treatment of thyroid cancer.

Synthroid is a brand name for levothyroxine. Synthroid is available as tablets.

Synthroid is not interchangeable with other levothyroxine medicines. Your body may react a little differently to one brand of levothyroxine than another. This is also true if you change from the generic form, levothyroxine, to the brand name Synthroid. Never switch this medicine without your doctor's consent. Your doctor will want to monitor your thyroid levels to make sure they are right for your condition. Take Synthroid exactly as your doctor has told you to.

Synthroid replaces a hormone the body makes on its own. Most people can take it safely. However, your doctor will want to know if you have any other medical condition, so he or she can make sure Synthroid is the right medicine for you. These include:
  • Diabetes
  • Heart disease, heart attack, or chest pain
  • Kidney disease
  • Liver disease
  • Osteoporosis
  • Clotting problems
  • Adrenal or pituitary gland problems
  • A thyroid condition called thyrotoxicosis
Tell your doctor if you are pregnant or breast-feeding. If you become pregnant while taking Synthroid, notify your doctor. Synthroid is generally considered safe during pregnancy and is not known to harm a nursing baby, but your doctor may need to adjust your Synthroid dose.

If you have diabetes, talk to your doctor about how Synthroid might affect your blood sugar levels. Your doctor may want to make adjustments to your diabetes medicines and ask that you monitor your blood sugar levels closely.

Synthroid can sometimes cause interactions with other medicines. These include over-the-counter medicines, such as antacids. Tell your doctor about any medicine you take, including over-the-counter medicines, herbal supplements, vitamins, and other supplements. Your doctor will want to know about any medicine that you take.

Synthroid can cause some side effects. If any side effect of Synthroid is severe, is worrying you, or does not go away, let your doctor know right away. Some side effects when taking Synthroid include:
  • Fatigue
  • Changes in appetite, weight loss, or weight gain
  • Tremor or shakiness
  • Headache
  • Nausea or vomiting
  • Diarrhea, vomiting, or stomach cramps
  • Nervousness or irritability
  • Trouble sleeping
  • Excessive sweating
  • Fever
  • Changes in menstrual cycle
  • Sensitivity to heat
  • Temporary hair loss
This is not a complete list of side effects of Synthroid. Talk with your doctor about these or any side effects you notice while taking Synthroid.

More serious symptoms may require immediate care. Get help right away for more serious signs such as:
  • Chest pain (angina)
  • Fast or irregular heartbeat
  • Signs of an allergic reaction: hives; trouble breathing; swelling of the face, neck, mouth, or tongue


Clinical Review by Jodi Grimm, RPh and Ann Ciemnoczolowski, MS, ELS on May 15, 2013

CVS Patient Statistics for Synthroid
Usage by Age
1.64%
under20_base
13.7%
20to40_base
42.34%
40to60_base
42.32%
over60_base
Most Commonly Used By CVS Patients
Usage by Gender
female_fill_graph
88.11%
female_fill_graph
male_fill_graph
11.89%
male_fill_graph
Learn More About Synthroid
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