Complex sentence: Hydroxychloroquine (HCQ) is an antimalarial drug, sold under the trade names Plaquenil, Axemal (in India), Dolquine and Quensyl, also used to reduce inflammation in the treatment of rheumatoid arthritis (see disease-modifying antirheumatic drugs) and lupus.
Split into simpler sentences: Hydroxychloroquine (HCQ) is an antimalarial drug, sold under the trade names Plaquenil. It is also used to reduce inflammation in the treatment of rheumatoid arthritis (see disease-modifying antirheumatic drugs) and lupus.