related_tweet: @charlesd79_ @duquesneduke23 @repvernonjones @andersoncooper @cnn you lied. the fda doesnt police so-called off-label prescribing, where a doctor uses an fda-approved drug to treat a condition or other ailment that the drug isnt approved to treat. since hydroxychloroquine is approved to treat malaria and lupus, doctors can use it.