Take Penegra as needed, approximately about half an hour to one hour before you plan to have sex activity. The maximum recommended dose is 100 mg once per day. The maximum recommended dosing frequency is once a day. The medical effect of Penegra lasts for approximately 4 hours.
Penegra is rapidly absorbed. Maximum observed plasma concentrations are reached within 30 to 120 minutes of oral dosing in the fasted state. If you take this medicine after a heavy or a high fat meal (such as a cheeseburger and french fries), the rate of absorption is reduced, with a mean delay in Time to reach maximum concentration of 60 minutes and a mean reduction in Concentration of 29%.
It can help you get an erection when you are sexually excited. You will not get an erection just by taking the pill.
Always start on the lower dosage (50mg) if:
• you are older than age 65 or have serious liver or kidney problems
• you are taking protease inhibitors, such as for the treatment of HIV
• if you have prostate problems or high blood pressure for which you take medicines called alpha blockers
Side effects are usually mild to moderate and usually don't last longer than a few hours. The most common side effects when using Penegra are headache, Urinary Tract Infection, Abnormal Vision, indigestion, back pain, muscle aches, flushing, and stuffy or runny nose. These side effects reflect the ability of PDE5 inhibition to cause blood vessels to widen and usually go away after a few hours. Back pain and muscle aches can occur 12 to 24 hours after taking the drug, and the symptom usually disappears after 48 hours.
Less common side effects that may occur are temporary changes in color vision (such as trouble telling the difference between blue and green objects or having a blue color tinge to them), eyes being more sensitive to light, or blurred vision.