This episode explores antimalarial therapy as the pharmacology of adaptation versus evasion. Plasmodium changes form, habitat, and vulnerability as it moves between liver, blood, and mosquito-forcing drugs to be chosen not just by species, but by life stage and geography. We trace haem detoxification, folate antagonism, mitochondrial targets, and artemisinin-based combinations to show why monotherapy fails and why resistance emerges wherever pressure is careless.

Key takeaways to carry forward:

* Life-cycle logic: liver stages, blood stages, and relapse prevention.

* Mechanistic targeting: haem polymerisation, folate pathways, mitochondrial function.

* Combination therapy: why ACTs protect efficacy and slow resistance.

* Resistance realities: geographic patterns and evolutionary pressure.

* Clinical judgement: treatment vs prophylaxis, species matters, adherence saves lives.

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