Levoxyl vs. Synthroid for Thyroid Cancer and Hypothyroidism: Important Differences and Potential Risks.

Levoxyl

(levothyroxine)

Synthroid

(levothyroxine)

Summary for Levoxyl

Prescription only

Levoxyl (levothyroxine) is a thyroid hormone used to treat hypothyroidism, or low thyroid hormone levels, in children and adults. It's also FDA approved to treat a certain type of thyroid cancer. The medication comes as a tablet that you take once a day by mouth on an empty stomach, typically in the morning. Regular blood tests are needed to keep your dose within the right range. Common side effects are usually related to taking too much and can include fast heartbeat, headache, trouble sleeping, or weight loss.

Indications for Levoxyl

Hypothyroidism (low thyroid hormone levels)
Thyroid cancer, together with radioactive iodine and surgery

Pros and Cons for Levoxyl

Pros

First-choice medication for treating low thyroid hormone levels
Safe to use during pregnancy
Only needs to be taken once a day
Can be taken by both children and adults

Cons

Must be taken on an empty stomach
Might take several weeks to find the right dose
Requires regular blood tests
Interacts with many foods, medications, and supplements

Common Side Effects for Levoxyl

Signs of having too much thyroid hormones in the body, such as:

Irregular heartbeat
Chest pain
Shortness of breath
Leg cramps
Headache
Nervousness
Hives or skin rash
Irritability
Trouble sleeping
Tremors
Muscle weakness
Change in appetite
Weight loss
Vomiting
Diarrhea
Sweating a lot
Sensitivity to heat
Fever
Changes in menstrual period

Warnings for Levoxyl

Not for weight loss
Heart problems
Adrenal crisis in people with adrenal insufficiency
Worsening diabetes
Bone loss

Summary for Synthroid

Prescription only

Synthroid (levothyroxine) is a thyroid hormone used to treat low thyroid hormone levels (hypothyroidism) in both children and adults. It's also used to treat a certain type of thyroid cancer. The medication comes as tablets in many different strengths. It's taken once a day by mouth, usually on an empty stomach in the morning. You'll need regular blood tests to make sure you're getting the right dose. Side effects can include headache, trouble sleeping, and weight loss.

Indications for Synthroid

Hypothyroidism (low thyroid hormone levels)
Thyroid cancer, together with radioactive iodine and surgery

Pros and Cons for Synthroid

Pros

First-choice medication for treating low thyroid hormone levels
Safe to use during pregnancy
Only needs to be taken once a day
Can be taken by both children and adults

Cons

Must be taken on an empty stomach
Might take several weeks to find the right dose
Requires regular blood tests
Interacts with many foods, medications, and supplements

Common Side Effects for Synthroid

Signs of having too much thyroid hormones in the body, such as:

Irregular heartbeat
Chest pain
Shortness of breath
Leg cramps
Headache
Nervousness
Hives or skin rash
Irritability
Trouble sleeping
Tremors
Muscle weakness
Change in appetite
Weight loss
Vomiting
Diarrhea
Sweating a lot
Sensitivity to heat
Fever
Changes in menstrual period

Warnings for Synthroid

Not for weight loss
Heart problems
Adrenal crisis in people with adrenal insufficiency
Worsening diabetes
Bone loss

Prices with our coupons for Levoxyl vs. Synthroid

Levoxyl90 tablets / 88mcg

$43.63$101.63

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Synthroid90 tablets / 75mcg

$165.60$203.55

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Levoxyl vs. Synthroid

Levoxyl

Synthroid

Summary for Levoxyl

Indications for Levoxyl

Pros and Cons for Levoxyl

Pros

Cons

Common Side Effects for Levoxyl

Warnings for Levoxyl

Summary for Synthroid

Indications for Synthroid

Pros and Cons for Synthroid

Pros

Cons

Common Side Effects for Synthroid

Warnings for Synthroid

Prices with our coupons for Levoxyl vs. Synthroid

Browse medications by letter

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Levoxyl

Synthroid

Summary for Levoxyl

Indications for Levoxyl

Pros and Cons for Levoxyl

Pros

Cons

Common Side Effects for Levoxyl

Warnings for Levoxyl

Summary for Synthroid

Indications for Synthroid

Pros and Cons for Synthroid

Pros

Cons

Common Side Effects for Synthroid

Warnings for Synthroid