An intriguing and thrilling version of the ED medication is Filagra. This drug helps men get and keep an erection by relaxing the penis's muscles and boosting blood flow to them. It is not possible to prevent sexually transmitted infections with sildenafil citrate. Your doctor may prescribe this medication to address additional ailments. A comfortable and strong generic substitute for Viagra. It is best to take it as needed, ideally half an hour to an hour before engaging in any sexual activity. It can be taken up to four hours before engaging in sexual activity. Repurposing Filagra can have very negative effects.