Introduction -- Pharmacology of Recommended Antimalarial Agents -- Drug Interaction Potential of Antimalarial Drugs Based on Known Metabolic Properties of Antimalarials -- Pharmacokinetic Drug Interactions Affecting Antimalarials -- Effects of Antimalarials on the Pharmacokinetics of Co-Administered Drugs -- Effects of Antimalarials on the Pharmacokinetics of Co-Administered Antimalarials -- Pharmacodynamic Interactions: Clinical Evidence for Combination Therapy, In Vitro Interactions, and In Vivo Interactions -- Limitations, Future Directions, and Conclusions.