How do antimetabolites exert their cytotoxic effect?

Correct Answer: D

Rationale: Antimetabolites act as false substrates in nucleic acid synthesis, disrupting DNA and RNA production.

Correct Answer: C

Rationale: Recrudescence occurs due to incomplete clearance of erythrocytic schizonts, leading to resurgence of symptoms.

Correct Answer: D

Rationale: Radical cure for P. vivax (targeting hypnozoites) is advised in sporadic and controlled endemic areas to prevent relapse.

Correct Answer: C

Rationale: Amodiaquine is less bitter and causes less itching than chloroquine, though its use is limited due to toxicity concerns.

Correct Answer: D

Rationale: IV quinine can cause hypoglycemia by stimulating insulin release.