Kamagra is a pharmacological analogue of the brand name Viagra which is used for the treatment of the erectile dysfunction. Kamagra contains the active ingredient sildenafil citrate.

This pharmaceutical product is prescribed men with disorder of the sexual function who do not have a normal erection. As other drugs from the group of the phosphodiesterase 5 inhibitors, Kamagra restores a complete potency temporarily but it does not cure of the impotence.

The mechanism of the action of Kamagra consists in the maximally fast improvement of the biological processes which stimulate erection. One of these processes is a release of the nitrogen oxide which dilates the arterial vessels in the penis. Blocking PDE5 enzyme, Kamagra helps to increase the intensity of dilation of the vascular lumen due to which the male penis is filled with the blood.

The active ingredient Sildenafil influences only on the processes which take part in the blood circulation of the penis. It does not affect the functions of the central nervous system or the work of the cardiac muscle, and therefore it does not have a healing action but it improves erection during the sexual arousal for a while.

How to take Kamagra?

The length of the action of Kamagra is 4-5 hours. It is an approximate time during which one Kamagra tablet 100 mg taken 60 minutes before the sexual intercourse will act.

Sildenafil takes about 40-50 minutes in order to dissolve in the gastro-intestinal tract and reach the blood plasma. Therefore, if you are going to have sex, Kamagra should be used at least one hour before having sex. If the tablet is used after meals, the speed of the dissolution of Sildenafil will be slow. The dose of Kamagra 100 mg can be taken once per day with a full glass of water.

Side effects

The side effects of Kamagra 100 mg appear in some cases if the recommendations for the use are not followed. Men can have unpleasant symptoms such as headache, nausea, pain in back and chest, muscle pain, and blurred vision.

The unwanted symptoms of Kamagra can be caused by the increased sensitivity to Sildenafil. In order to lower the intensity of the side effects, it is necessary to lower the daily dose of Kamagra up to 50 mg.


The overdose symptoms can appear during the excessive amount of the Sildenafil concentration in the blood. It can happen during the use of more than one tablet of Kamagra 100 mg within a long time. In this case, the side effects are increased and vomiting, allergic reaction and tachycardia can happen.

If you feel the signs of the overdose, it is necessary to have a stomach lavage and symptomatic therapy.


Medical interaction

  • Donators of the nitrogen oxide can enhance the vasodilating action of Kamagra, so that the side effects will be increased
  • Medicines which contain the organic nitrates are contraindicated to be used with Kamagra. Their interaction can lead to serious side effects in the cardiovascular system
  • There is a potential danger for the health during the simultaneous use of Kamagra with drugs beta-adrenoreceptors, hypotensive products and peroral hypoglycemic products. The interval between the use of these medicines should be at least 24 hours. If a severe dizziness and sudden decrease of the blood pressure happened during the use of these drugs, seek for a medical aid.

In case of the interaction of Sildenafil with alcohol, the body reaction can be different. A patient often has redness of the face, giddiness, or headache. However, severe side effects can happen, and therefore if you are intoxicated, do not take Kamagra to improve potency.