Thyroid Health
Synthroid and Cytomel replace thyroid hormone for hypothyroidism, while Neomercazole and Tapazole reduce hormone production for hyperthyroidism, the two opposite thyroid conditions this range covers.

Neomercazole
5mg · 10mg
Carbimazole tablets for an overactive thyroid. It slows the production of thyroid hormone.
Key points
- Hypothyroidism means the thyroid makes too little hormone, while hyperthyroidism means it makes or releases too much.
- Thyroid testing commonly measures TSH alongside T4, and sometimes T3 or thyroid antibodies too.
- Levothyroxine is NICE’s first-line treatment for primary hypothyroidism, while antithyroid medicines form part of hyperthyroidism management.
Hormone replacement and antithyroid tablets
Levothyroxine is the T4 hormone in Synthroid, and liothyronine is the T3 hormone in Cytomel; each is listed for hypothyroidism, and Cytomel is also listed for myxoedema coma. Carbimazole is the antithyroid ingredient in Neomercazole, and Tapazole contains thiamazole, a related antithyroid ingredient; both are listed for hyperthyroidism.
Further reading
Which thyroid medicines can I buy on Direct Meds?
Direct Meds lists 4 thyroid medicines. Together they contain 4 different active ingredients, including levothyroxine, liothyronine and carbimazole. Examples include Synthroid and Cytomel; all 4 medicines are listed on this page.
What do thyroid medicines treat?
Between them, the thyroid medicines on Direct Meds are used for hypothyroidism, hyperthyroidism and myxoedema coma.
What form do thyroid medicines come in?
They come as tablets. The strengths are listed on each product page.
How do I choose between the thyroid medicines on Direct Meds?
Start with the active ingredient: there are 4 different ones in this range. Products with the same active ingredient contain the same medicine. Compare their strength, form and price per tablet. Each product page's details table lists uses, how quickly it works, side effects and interactions. If you take other medicines, are pregnant or have a long-term condition, check with a doctor or pharmacist first.
Are the thyroid medicines on Direct Meds generics?
Mostly, yes. Names such as Synthroid and Cytomel identify the medicine: you receive a generic with the same active ingredient and strength. Another medicine, Neomercazole, is listed under its own name; for it you receive a branded generic or generic with the same active ingredient, depending on stock.
What you will receive →How much do thyroid medicines cost in South Africa?
Compare each medicine, strength and pack on its product page. Prices are shown in rand, converted from US dollars, so the final rand total can change with the exchange rate. Larger packs usually cost less per tablet.
Payment and prices →Are thyroid medicines available over the counter in South Africa?
Yes, online. Direct Meds does not ask for a prescription to order thyroid medicines. We are a broker, not a dispensing pharmacy. We arrange orders and delivery with our affiliated supplier on your behalf.
Ordering without a prescription →Where can I buy thyroid medicines online in South Africa?
Choose a product, strength and pack, then check out. Our affiliated supplier delivers across South Africa. Estimated delivery is 7 days with Express Delivery, which includes online tracking, or up to 3 weeks with Regular Delivery.
How ordering works →Related articles

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