Kamagra is used to treat erectile dysfunction (ED) or impotence. The drug contains sildenafil as an active ingredient. The use of this medicine gradually relaxes the tight muscles and improves blood supply to the penile muscles. So that erection can be achieved easily and for a long time during sexual activity. This drug is more effective than other drugs. The effect of this medicine lasts for 4-6 hours. Take the pill 40 minutes before sex. For more information, you can visit pharmev.com.