How to use Viagra?
Top 2 in Top 7 Things to Know About Viagra
Read the information provided by your pharmacist before you start taking sildenafil each time you get a refill. If you have any concerns, consult your doctor or pharmacist.
Take this medication by mouth as advised by your doctor to treat erectile dysfunction-ED. Take sildenafil at least 30 minutes before sexual activity, but no more than 4 hours (1 hour before is the most effective). Take no more than once each day.
The dosage of Viagra is determined by your medical condition, treatment response, and any other medications you may be taking. Inform your doctor and pharmacist about all of the products you use (including prescription drugs, nonprescription drugs, and herbal products). If your situation does not improve, consult your doctor.