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Thyroid HealthThyroid Health

This category covers medicines that correct thyroid hormone levels, whether the thyroid is underactive (too little hormone) or overactive (too much). The dose is guided by blood tests. Treatment is guided by blood tests, and both directions, too little hormone and too much, are corrected with opposite medicines.

Neomercazole

Carbimazole

5 · 10mg

Carbimazole 5mg and 10mg tablets, used in the management of hyperthyroidism. It blocks thyroid peroxidase, so T3 and T4 are not made.

From$0.21/ tabletView

Tapazole

Thiamazole

5 · 10mg

Thiamazole 5mg and 10mg tablets, used in the management of hyperthyroidism. A thionamide that blocks the enzyme thyroid peroxidase.

From$0.48/ tabletView

Cytomel

Liothyronine

20mcg

Cytomel is liothyronine 20mcg tablets for hypothyroidism, supplying the T3 thyroid hormone rather than the more usual T4 replacement.

From$0.94/ tabletView

Levothroid

Levothyroxine

25 · 50mcg

Levothyroxine 25mcg and 50mcg tablets, used in the management of hypothyroidism and thyroid-stimulating hormone suppression. Synthetic T4.

From$0.15/ tabletView

Key points

  • Treatment corrects a measured hormone level, so dosing follows blood tests rather than symptoms alone.
  • Replacement for an underactive thyroid and blocking drugs for an overactive one are opposite treatments.
  • Levothyroxine absorption is affected by food and by other medicines, which is why timing is specified.

Classes and ingredients in this category

Conditions it covers

These medicines are used for hypothyroidism and hyperthyroidism. Levels are rechecked after any dose change, so this is monitored treatment rather than a fixed prescription.

Further reading