Generic drugs are copies of a brand name drug. Brand name drugs are the ones which have a unique selling point. They are available on prescription only and contain active ingredients that are similar to those found in the brand name drugs. For instance, the brand name drug Viagra is a phosphodiesterase 5 inhibitor. The generic version contains the same active ingredient, sildenafil, however it does not have a brand name. Instead, it has a generic name such as Sildenafil Citrate. The active ingredient is the same, the only difference between the two is their brand name and generic names.

FDA approval is a necessary requirement for a product to be labeled as a generic.

The reason why people prefer to use generic medications is that the manufacturers of generic medications are not allowed to change the active ingredients in their medications. They must follow the exact chemical formula that is given to them.

• If you take “nitrates” you should not take VIAGRA. A sudden drop in blood pressure can cause you to feel unwell or even have a heart attack. If you take medicines called guanylate cyclase stimulators, you should not take VIAGRA.

•   Sexual activity can put an extra strain on your heart, especially if your heart is already weak from a heart attack or heart disease. Ask your doctor if your heart is healthy enough to handle the extra strain of having sex

• If you are still not getting the results you were hoping for, ask your doctor to adjust your dose. You should not take it more than once a day. Roughly 4 out of 5 men get and keep erections hard enough for sex at a dose of 50 or 100 grams of ViaGRA. There was an improvement in the men’s ability to get and keep an erection when they took VIAGRA.

Your healthcare provider may need to adjust your dose based on how you take VIAGRA or if they have more information about your medical history. Take VIAGRA about 1 hour before sexual activity.

VIAGRA should be taken 30 to 120 minutes before sexual activity.

If you want to take VIAGRA without food, try taking it first thing in the morning before breakfast and wait 20 – 30 minutes to see if it helps.

You should only take VIAGRA once a day. If you accidentally take too much VIAGRA, call your doctor right away.

• Taking VIAGRA can cause headaches, fatigue, nausea and stomach pain.

• You should avoid drinking alcohol while you are using VIAGRA because it can increase the risk of side effects.

• You should also try to drink lots of fluids during the day. This will help prevent you from having a fever.

• you should try to avoid taking this medicine on an empty stomach. You can have a cup of tea or coffee before taking this medicine.
•  Sometimes you may feel very tired and want to sleep all day. If you feel this way, don’t worry. It’s perfectly normal for your body to feel like this. Usually, this feeling will last for a few days. Your body needs a few days to adjust to the medicine.
• You may also feel dizzy, lightheaded or nauseous. These are all side effects. If you are experiencing any of these side effects, you should tell your doctor right away.