Does Kamagra (Sildenafil Citrate) cause any side effects?
Side effects such as headaches, facial flushing and an upset stomach can occur, though these are most likely with higher doses of Kamagra (Sildenafil Citrate). These side effects are usually mild and do not last longer than a couple of hours.
There is also a possibility of bluish or blurred vision or sensitivity to light. Should an erection last longer than four hours, get medical assistance immediately.