I took antimalaria drugs 3 hours after taking postinor 2...would the anti malaria drug(lumartem) stop the postinor 2 from working? (PS_ I took the two postinor 2 tablets at the same time) I also took alcohol 3hours later after taking the anti malaria drug...if that matters...I just want to know if the anti malaria drug would stop postinor from doing its job.