Falcidin is a prescription drug belonging to the group of anti-parasitic, anti-infective, antiviral, and antifungal drugs. The drug is prescribed by doctors to treat most forms of malaria, especially strains that have been resistant to previous anti-malarial drugs.

muscle cramp is an involuntary contraction of a muscle. It is temporary but intense and painful and can occur in a variety of situations. The cause and treatment of muscle cramps are still controversial. Quinine, an antimalarial drug, has shown early signs of reducing the frequency and severity of leg cramps.