Viagra is the trade name and generic name for sildenafil citrate tablets, which are primarily used to treat erectile dysfunction in men.
Sildenafil citrate tablets can inhibit phosphodiesterase type 5 and increase the level of cyclic guanosine monophosphate in the corpus cavernosum, thus relaxing the smooth muscle and encouraging the flow of blood into the corpus cavernosum. Therefore, the main effect of Sildenafil Citrate Tablets is to treat male erectile dysfunction. Usually, patients can take it about 1 hour before sexual intercourse, but it should be taken under doctor’s supervision.
During the application of Sildenafil Citrate Tablets, avoid applying nitrate drugs to prevent affecting blood pressure. Sildenafil Citrate Tablet is contraindicated if the patient is allergic to the drug components or has had myocardial infarction, resting state hypotension or hypotension, anemia in the last 6 months. Some patients may experience adverse reactions such as fainting and vomiting after using the drug, but the duration is relatively short-lived.
Sildenafil Citrate Tablets are recommended to be taken on medical advice, and should not be used indiscriminately or the dosage should be increased or decreased at will.