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Levothyroxine: Uses, Dosage, Side Effects, and More

Levothyroxine is a prescription thyroid hormone used to treat hypothyroidism, a condition where the thyroid gland does not produce enough hormone. It works by replacing or supplementing thyroxine (T4), helping regulate metabolism, energy levels, and overall body functions. Synthroid is typically taken once daily, usually on an empty stomach in the morning.

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Controlled Substance Warning

Levothyroxine is not a controlled substance. It is available by prescription only and must be used under the guidance of a healthcare provider.

Drug Facts

Generic Name

Levothyroxine Sodium

Brand Names

Synthroid, Levoxyl, Tirosint, Unithroid

Drug Type

Thyroid hormone replacement

Dosage Forms

Tablets, capsules, oral solution

Typical Dosage

Individualized based on thyroid function tests, age, and weight; taken once daily, preferably 30–60 minutes before breakfast

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Why pay retail prices for the same medication?
At Invictus, we source directly from trusted, FDA-approved manufacturers to keep your costs low without sacrificing quality. Whether you need a one-time fill or regular refills, our transparent pricing makes it easy to save every day.

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No one should overpay for safe, effective medication. By cutting out middlemen and working directly with trusted, FDA-approved manufacturers, Invictus offers the same high-quality medicines you’d find at big retail pharmacies—at a fraction of the price.  Whether you choose brand-name or generic, we’ll deliver it quickly, affordably, and right to your door. Maybe that’s why most patients who switch to Invictus never look back.

Disclaimer

The information provided on this page is for general informational purposes only and is not intended as medical advice. Always consult with a licensed healthcare provider before starting, stopping, or changing any medication regimen. While Invictus strives to provide accurate and up-to-date information, individual health conditions and circumstances vary. The prices, availability, and descriptions of all medications on this page are subject to change.

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