Compare Cytomel vs. Thyrolar

Head-to-head comparisons of medication uses, side effects, ratings, and more.

Cytomel
(Liothyronine)

Thyrolar
(Liothyronine / Levothyroxine)

Replaces thyroid hormones. Cytomel (Liothyronine) is good for treating low thyroid, but you may need frequent blood tests and you should take it exactly as told by your doctor and pharmacist.Coming soon.
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Reviews & ratings
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Side effects
CytomelThyrolar

We haven’t found good data for Cytomel side effects.

FDA side effect reports for Cytomel »

We haven’t found good data for Thyrolar side effects.

FDA side effect reports for Thyrolar »
How it works
CytomelThyrolar
Cytomel (Liothyronine) is a synthetic form of thyroid hormone. The thyroid gland makes hormones that are important for body metabolism, growth, and development.Coming soon.
Type of medication
CytomelThyrolar
Thyroid supplementPrescription only
Coming soon.
Available as
CytomelThyrolar
  • Pill
  • Pill
Used for (click to learn more)
CytomelThyrolar
    Risk factors for serious side effects
    CytomelThyrolar
        • Current heart disease
        • Age 60 or older
        • Taking Cytomel (Liothyronine) with certain types of stimulant medicines
        • Diabetes
          Detailed Cytomel (Liothyronine) risks & warnings »
          Coming soon.
          Pregnancy category
          CytomelThyrolar
          AFDA pregnancy category (Safe)

          Research studies with real people haven’t found any risk to unborn babies in the first trimester. There’s no evidence of risk later in pregnancy, either.

          See the FDA package insert
          AFDA pregnancy category (Safe)

          Research studies with real people haven’t found any risk to unborn babies in the first trimester. There’s no evidence of risk later in pregnancy, either.

          See the FDA package insert
          Alcohol
          No specific alcohol-related info.No specific alcohol-related info.
          Food
          • Cytomel (Liothyronine) has many food and drug interactions. Talk to your doctor or pharmacist before you make any changes or start a new medicine.
          No specific food-related info.
          Kidneys and liver
          No specific kidneys and liver-related info.No specific kidneys and liver-related info.
          Sex
          No specific sex-related info.No specific sex-related info.
          Sleep
          No specific sleep-related info.No specific sleep-related info.
          Weight
          • Don't take Cytomel (Liothyronine) for weight loss or obesity. It’s not recommended, safe or effective for this use, especially if you don't have problems with your thyroid. Taking high doses of Cytomel (Liothyronine) can cause serious effects, especially if used with other medications for weight loss. Talk to your doctor about other medicines you can take to treat your condition.
          No specific weight-related info.
          Upsides and benefits
          CytomelThyrolar
          • Cytomel (Liothyronine) supplies an important hormone that your body needs to grow and develop.
          • Safe during pregnancy.
          • Available in generic.
          Coming soon.
          Downsides and risks
          CytomelThyrolar
          • You may need frequent dose adjustments when you first start taking Cytomel (Liothyronine) or if your health changes.
          • Periodic blood tests are needed to make sure you're getting the right dose.
          • Cytomel (Liothyronine) supplies one type of thyroid hormone, which may not be right for everyone.
          • Cytomel (Liothyronine) has many food and drug interactions. Talk to your doctor or pharmacist before you make any changes or start a new medicine.
          Coming soon.
          Tips from our pharmacists for people taking the medication
          CytomelThyrolar
          • Full effects may take a few weeks. Continue taking Cytomel (Liothyronine) even if you don't feel better right away. Talk to your doctor before making any changes.
          • You'll need blood tests to see if you're on the right dose of Cytomel (Liothyronine). Your doctor may adjust your dose every 1 to 2 weeks.
          • Taking calcium with Cytomel (Liothyronine) may lower your thyroid hormones. If you take calcium, separate taking it and Cytomel (Liothyronine) by at least 4 hours.
          • Try to take Cytomel (Liothyronine) at the same time each day.
          Coming soon.
          Learn more
          More about CytomelSide effectsReviews & ratingsAlternativesFDA package insert
          More about ThyrolarSide effectsFDA package insert