Kamagra Effervescent tablets are used in the treatment of erectile dysfunction and contain 100mg of the active ingredient sildenafil citrate. To consume drop one tablet in a small glass of water and stir gentle. Within a minute or two, the tablet will dissolve in the water allowing the patient to easily drink obtained solution. Kamagra Effervescent disolvable tablets are supplied in a tube containing 7 tablets. Take the medicine as it was prescribed by your doctor. Take it with a glass full of water. Take it within 1 hour before your sexual activity. Do not take more that it was prescribed. Precautions Before taking the medicine speak with your doctor if your have the following conditions: kidney or liver disease, heart disease or any heart problems, vision or eye problems, including such disease as retinitis pigmentosa, stroke and if you have allergy to sildenafil, food, preservatives or other medicines. Contradications Be careful using this medicine. If you note any charges in your vision during the treatment call your doctor at once. If you fell such symptoms as dizziness, nausea, arm or chest pain after taking this medicine you should contact your doctor at once. Call your health care adviser if erection lasts more than 4 hours or becomes painful. It can be a sigh of disease and lead to damage. Side effects The most common side effects are headache, back pain nasal congestion, diarrhea, running nose, light sensitivity, drowsiness, stomach upset, blurred vision, color blindness. They don’t require medical assistance. The following side effects can be serious and you should tell your doctor about them: chest pain, prolonged or painful erection, changes in vision and hearing, blurred vision, allergic reactions as rash, swelling of face, hands and lips, irregular or fast heartbeat. If these symptoms occur please contact your doctor as soon as possible.