It’s more common than you may think. About half of men ...

Your doctor will tell you how much VIAGRA to take and when to take it. You may take VIAGRA up to 4 hours before sexual activity. It can be taken with or without food. If you take VIAGRA after a high-fat meal (such as a cheeseburger and french fries), it may take a little longer to start working. Do not take VIAGRA more than once a day. ................
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