Some men worry that they will feel drowsy after taking Sildenafil. Sometimes this is the case because one of the possible side effects of the drug is a decrease in blood pressure. It’s unlikely that you will fall asleep during sex, but after you reach ejaculation, you will feel a natural desire to sleep. That’s why online pharmacists on http://minickandcompany.com/viagra-cialis-and-levitra-comparison.html recommend taking the gel a few hours before bedtime.