Dear practo thank u for raising ur issue on practo according to ayurveda we can consider ur case under shand dont wry it is curable with ayurvedic medicine we can i crease ur erection time and sex stamina without any side effect By following measures we can get best results 1) Decrease ur weight if ur obese 2) Stop addictions if any 3) do regular excercise 4) if there is any stress do yoga or meditation By above few things we can best result and we can take u from ur problem forever