1) Antimalarial agent 
<chemical> 4-amino-n-(3-methoxypyrazinyl)benzenesulfonamide. Long-acting plasma-bound sulfonamide used for respiratory and urinary tract infections and also for malaria. ... Pharmacological action: anti-infective agents, anti-infective agents, urinary, antimalarials. ... Chemical name: Benzenesulfonamide, 4-amino-N-(3-methoxypyrazinyl)- ... (...