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Active Ingredients
Important Disclaimer
These statements have not been evaluated by the Food and Drug Administration (FDA). Compounded products are not FDA-approved and are not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary. The information provided is for educational purposes only and should not be considered medical advice. Always consult with your healthcare provider before starting any new treatment.
Clinical Information
Evidence-based details for healthcare providers
Use as directed by your healthcare provider. Take your dose at the same time each day on an empty stomach with a full glass of water. If you miss a dose, take it as soon as you remember unless it is close to your next dose. Do not double up on doses. Your healthcare provider will decide how long you should stay on this medication.
Liothyronine (T3) and levothyroxine (T4) replace the thyroid hormones your body is missing. T4 is converted in your tissues to T3, the active hormone. T3 works inside cells to control metabolism, body temperature, heart rate, and energy use. Because this capsule releases the hormones right away, blood levels start to rise within 1-2 hours. Symptom relief—such as more energy and less brain fog—often begins within 1-2 weeks, but full benefits may take 4-6 weeks as hormone levels steady.
Do not use if you have untreated overactive thyroid (hyperthyroidism) or a recent heart attack. Do not use if you have uncorrected adrenal gland problems because it can trigger adrenal crisis. Do not use if you are allergic to liothyronine, levothyroxine, or any capsule ingredients. Tell your provider if you are pregnant; your dose may need adjustment but therapy is usually continued. Not for use as a weight-loss drug in people with normal thyroid function.
Thyroid hormones may raise the effect of blood thinners like warfarin (Coumadin) and increase bleeding risk. Seizure medicines (phenytoin, carbamazepine) and some antidepressants can speed up hormone breakdown, lowering levels. Calcium, iron, magnesium, and antacid products can block absorption—take them at least 4 hours apart. Cholestyramine and colesevelam can also reduce absorption. Estrogen therapy or birth-control pills may raise binding proteins and change your dose need. Tell your provider about all prescription drugs, over-the-counter medicines, and supplements you use.
Common (may affect up to 1 in 10 people): mild tremor, nervousness, trouble sleeping, headache, increased sweating. Less common (1 in 100): fast heartbeat, palpitations, diarrhea, weight loss. Rare but serious: chest pain, severe shortness of breath, irregular heartbeat, or signs of allergic reaction (rash, swelling, trouble breathing). Side effects often improve after dose adjustment. Call your provider right away if you have chest pain, rapid heartbeat, or severe anxiety.
Store at room temperature 68-77 °F (20-25 °C) in a dry place away from light. Keep capsules in the original closed bottle. Avoid bathroom or kitchen areas with high moisture or heat. Do not freeze. Keep out of reach of children and pets. Check the pharmacy label for expiration date and dispose of unused capsules through a drug take-back program or mix with coffee grounds in a sealed bag before discarding.
Frequently Asked Questions
How should I take my thyroid capsule each day?
Take it on an empty stomach, about 30–60 minutes before breakfast, with a full glass of water. Swallow the capsule whole and wait at least 30 minutes before eating or taking other medicines.
When will I start feeling better?
Many people notice more energy and clearer thinking in 1–2 weeks, but it can take 4–6 weeks for thyroid blood tests to reach the target range. Keep taking it daily and follow up with your provider for lab checks.
Can I take vitamins or antacids with this medication?
Yes, but space them out. Calcium, iron, magnesium, or aluminum products can block thyroid hormone. Take them at least 4 hours after your capsule to avoid absorption problems.
Is it safe to use during pregnancy?
Thyroid hormone is usually continued in pregnancy because it helps your baby’s brain develop. Your dose may change, so tell your obstetrician right away and get thyroid blood tests every 4–6 weeks.
What if I forget a dose?
Take it as soon as you remember unless it is within 8 hours of your next scheduled dose. If it is close to the next dose, skip the missed one. Do not take two capsules at the same time.
Can I use this medicine to lose weight?
No. Taking thyroid hormone when your thyroid is normal can cause serious heart problems and is not an approved weight-loss method. Use it only under a healthcare provider’s supervision for diagnosed thyroid conditions.