Sildigra is a high quality Viagra generic. I have found all ED meds work better and faster if they are taken on an empty stomach at least 30 minutes prior to *****ual activity.
The 100mgs are very effective for achieving an erection. I personally have not had an erection lasting 4 hours but the Sildenafil will be in your system until your body filters it out. That could take anywhere from 4-6 hours.

Refunds with this type of product is not really an option. I would not sell opened packs and I am sure you would not buy opened packs. I am a reasonable person. If your order gets lost before delivery, I will ship out another. If your order gets stolen or delivered to an incorrect address, I will try to help you out but you really need to take responsibility for your error as I take responsibility for mine.