There are all the same - The only differences between generics and their brand-name counterparts is that generics are less expensive and may look different.

VIAGRA® or Kamgra® Substance:: Sildanefil Citrate/Generic sildanefil Citrate

What is a Generic?

A generic drug is a copy that is the same as the brand-name drug in dosage, safety, strength, how it is taken, quality, performance and intended use. Generics have the same active ingredients as the brand-name and work the same way in the body in the same amount of time. The only differences between generics and their brand-name counterparts is that generics are less expensive and may look different.

Generetics are less expensive

Generics are less expensive because generic manufacturers don�t have to invest large sums of money to invent a drug. The drug has already been invented by the brand-name company. Where the brand-name patent expires, generic companies can copy the drug and sell it at substantial discounts. Generics look different than their brand-name counterparts (eg. the pill may have a different shape or color) because trademark laws do not allow a generic to look exactly like the brand-name drug.

WHAT IS THIS MEDICATION USED FOR?

It helps a man with erectile dysfunction (impotence) get and keep an erection only when he is sexually stimulated.

WHO should not take  Sildenafil Citrate?

People who are currently taking nitrates, whether this is ongoing or just periodic therapy. People who are using inhaled nitrates, amyl nitrate or nitrite, also known as poppers. People whose heart is not healthy enough for sexual activity. If you have chest pain during sexual activity, you should consult your primary physician to see if your heart can handle the strain of this activity.

HOW DO I TAKE it?

The Tabs should be taken approximately 60 minutes prior to having sex, with or without food. If you are sexually stimulated, it can help you to get an erection about 30 to 60 minutes after taking it. The erection can last for up to 4 hours. Alcohol can be consumed while taking the tabs..

WHAT ARE THE POSSIBLE SIDE EFFECTS?

The most common side effects are headache, flushing of the face, and upset stomach. These are usually mild and do not last very long. You are more likely to experience these effects at higher doses. Other less common side effects include temporary changes in color vision, eyes becoming sensitive to light, and blurred vision. A rare side effect is prolonged erection. If you ever have an erection that lasts more than 4 hours, you should contact your physician immediately

OTHER IMPORTANT INFORMATION

The tabs should not be taken more than once a day. If you are taking protease inhibitors for the treatment of HIV, you may want to take the lowest dose (25 mg) and not exceed a maximum single dose of 25mg in a 48 hour period. If you are over 65, or have serious liver or kidney problems, you may want to start with the lowest dose (25 mg) If you are on Tagamet (Cimetidine), ketoconazole, itraconazole, saquinivir, or erythromycin, you may want to start with the lowest dose (25 mg) The tabs tends to work better on an empty stomach. You can take it after you have eaten, but it may take longer to work, especially after a high-fat meal.