jama hydroxychloroquine chloroquine molecul is plaquenil administered subcutaneously chloroquine phosphate reef chloroquine and primaquine used to treatment of quizlet drug interactions with plaquenil nice methotrexate hydroxychloroquine 1) hydroxychloroquine 2) sulfasalazine 3) minocycline 4) methotrexate 5) azathioprine 6) leflunomide