Pharmacology and Therapeutics

Correct option: Tetrathiomolybdate is used as an anti copper agent in Hepatolenticular degeneration.

Erythropoietin stimulates production of haematids in the treatment of anaemia.

Nalidixic acid is a synthetic chemical useful for treatment of urinary tract infections caused by gram negative bacteria. Its antimicrobial activity is attributed to inhibition of DNA synthesis.

Pyrimethamine is a protozoal DHFR (Dihydrofolate reductase) inhibitor and thus, it is used as an antiprotozoal agent.

Dicumarol is a vitamin K antagonist that inhibits the carboxylation of glutamic acid residues in clotting factors II, VII, IX, and X. This post-translational modification is essential for their activity.

Antipyretics are medications that reduce elevated body temperature (fever) by acting on the hypothalamic heat-regulating center. Common examples include paracetamol (acetaminophen), aspirin, and ibuprofen. They should not be confused with analgesics (pain relievers) or antibodies (immune proteins).

Aldosterone is a mineralocorticoid hormone produced by the adrenal cortex. It regulates sodium and potassium balance in the body. Prednisolone, Hydrocortisone, and Betamethasone are glucocorticoids, not mineralocorticoids.

Sulfonylureas, Biguanides, and Repaglinide are all major classes of oral antidiabetic drugs used to treat type 2 diabetes. Sulfonylureas stimulate insulin secretion, Biguanides reduce hepatic gluconeogenesis, and Repaglinide is a meglitinide that stimulates insulin release.

Prednisolone, Hydrocortisone, and Dexamethasone are all glucocorticoids - synthetic or natural corticosteroid hormones that regulate glucose metabolism, suppress immune responses, and reduce inflammation. They are distinct from mineralocorticoids which regulate electrolyte balance.

Artemether is an antimalarial drug effective against cerebral malaria - the severe form of malaria that affects the brain. It is often used in combination with lumefantrine (Coartem). The other options are incorrect - Indinavir is an HIV protease inhibitor, Pioglitazone is an antidiabetic, and Repaglinide is also an antidiabetic.

Miconazole, Ketoconazole, Fluconazole, and Itraconazole are all azole antifungal drugs that work by inhibiting fungal ergosterol synthesis. They are not antidiabetic, sedative, or anti-leprosy medications. Azoles are a major class of antifungal agents used to treat various fungal infections.

Stavudine is an antiretroviral medication (NRTI - nucleoside reverse transcriptase inhibitor) used to treat HIV infection and AIDS. It inhibits reverse transcriptase, preventing viral replication. It does not treat Melanoma, Cholera, or Tuberculosis.

Praziquantel is specifically a schistosomicide - the drug of choice for treating schistosomiasis (bilharzia). It is not used for tapeworms (niclosamide/albendazole), threadworms (albendazole/mebendazole), or as a filaricide (diethylcarbamazine/ivermectin). Praziquantel works by causing tetanic paralysis of schistosomes.

Dapsone is the primary drug used to treat leprosy (Hansen's disease), often in combination with rifampin and clofazimine (MDT-Multi Drug Therapy). Vancomycin is an antibiotic for resistant gram-positive infections, and Indomethacin is an NSAID. 'All of the above' is incorrect since only Dapsone treats leprosy.