Kamagra 50 mg tablets can be taken on an empty stomach or with meals. Kamagra 50mg should be taken strictly as recommended by your doctor. It is advisable to wait approximately one hour before planning sexual intercourse. The duration of action varies from person to person, but is generally 30 minutes to one hour. If you are sexually aroused, this medication will only help you achieve an erection. However, do not take it if you do not suffer from erectile dysfunction.