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Attention! You should not take Viagra if you are using a nitrate drug for chest pain or heart problems at this moment because it can cause a serious decrease in blood pressure, leading to fainting, stroke, or heart attack.

Viagra – how does it work - it relaxes muscles and increases blood flow to particular areas of the patient’s body, therefore you should not take Viagra pills in larger doses or for longer than recommended.

Besides, you should not take Viagra more than once per day. So, it is needed to allow 24 hours to pass between Viagra doses.

Nowadays when sexual stimulation occurs Viagra can help men have an erection. However erection will not occur just by taking a Viagra pill, therefore you should follow instructions.

In turn, while taking Viagra, you should avoid drinking alcohol, which can increase Viagra side effects and you should avoid using other medicines to treat impotence.

In cases when you have any of these conditions, you may not be able to use Viagra or you may need a dosage adjustment or special tests during treatment.

Nowadays when this list of frequently asked questions and answers on Viagra pills has been developed by Drug Information Branch in response to the numerous telephone calls we have received, then if you have other questions concerning Viagra pills or any other human drug products, please feel free to call Drug Information Branch.