Bigfun is a popular drug to solve the problem of impotence. Bigfun acts as a drug and Sildenafil is an active ingredient. Bigfun is mainly taken 1 hour before intercourse, after which its effect lasts for 4-5 hours. Take Bigfun only once a day. And it is advisable to consult a doctor before taking these tablets. Bigfun is an effective drug that can make you feel good about sex. Keep working polo away from small children and pets.