Abbott (Abbvie) produces levothyroxine under the name Thyronorm and Synthroid. Levothyroxine is also called Thyroxine internationally.
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Information about Synthroid (Levothyroxine)
Synthroid is a prescription medication that contains levothyroxine, a synthetic form of the thyroid hormone thyroxine (T4). It is commonly prescribed to treat hypothyroidism (underactive thyroid), where the thyroid gland does not produce enough thyroid hormone. This medication helps regulate the body's metabolism and maintains proper energy levels by supplementing the low levels of thyroid hormone in the body.
Product Highlights
- Levothyroxine is primarily prescribed for individuals with an underactive thyroid (hypothyroidism), where the thyroid fails to produce enough hormones.
- It is also used for patients who have had their thyroid removed due to conditions like thyroid cancer or other disorders.
- It helps reduce the size of an enlarged thyroid gland (goiter) caused by an iodine deficiency or other conditions.
- A condition where the immune system targets the thyroid gland, leading to hypothyroidism.
Key Ingredient
Key Benefits
- Synthroid helps normalize thyroid hormone levels, which can improve symptoms of hypothyroidism, such as fatigue, weight gain, depression, and sensitivity to cold.
- It helps in regulating metabolism, contributing to improved energy levels and weight management.
- Proper thyroid hormone levels can help improve focus, memory, and mental clarity.
- In children with hypothyroidism, it supports proper growth and development.
- Synthroid is generally safe for long-term use when dosages are properly monitored.
Direction of Use
- Synthroid should be taken orally, typically once daily, on an empty stomach, ideally 30 to 60 minutes before breakfast. This allows for better absorption.
- Take the medication at the same time every day to achieve the best results.
- The dosage is based on individual thyroid hormone levels and needs to be adjusted by a healthcare provider. Start with a low dose and gradually adjust it as needed.
- Certain foods and supplements (like calcium, iron, or antacids) may interfere with levothyroxine absorption. Wait at least 4 hours before or after taking Synthroid to consume these.
Safety Concerns
- Overdosing on levothyroxine can cause symptoms of hyperthyroidism (e.g., rapid heartbeat, chest pain, weight loss, fever, or anxiety). Always adhere to prescribed doses.
- Some medications (such as anticoagulants, diabetes medications, and antidepressants) may interact with Synthroid, affecting its effectiveness or increasing side effects.
- Synthroid is considered safe for use during pregnancy, but dosage adjustments may be necessary. Untreated hypothyroidism during pregnancy can present risks to both the mother and the baby.
- Regular blood tests are necessary to monitor thyroid hormone levels and ensure the dosage is effective.
Avoid Synthroid (Levothyroxine) If
- Do not take Synthroid if you have hyperthyroidism (overactive thyroid), as it will exacerbate the condition.
- If you are allergic to levothyroxine or any other components in the medication, you should avoid using it.
- If you have untreated adrenal problems, such as adrenal insufficiency (Addison's disease), consult your healthcare provider before starting Synthroid.
- If you have heart problems, particularly coronary artery disease, your healthcare provider will need to adjust the dosage carefully to avoid complications.
