Sildenafil Citrate 25mg is useful for some groups of people, such as patients over 65 years of age, impaired liver and kidney function.
Sildenafil citrate can be used for the treatment of erectile dysfunction, for most of the patients using the dose of 50mg, but some people may increase the incidence of adverse reactions, such as age 65 years or older, impaired hepatic and renal function, taking liver enzyme inhibitors such as: ketoconazole, itraconazole, erythromycin and other medications; so the recommended dosage of these patients is 25mg.
Sildenafil citrate may have adverse reactions such as facial edema, shock, pain, angina, tachycardia, vomiting, liver function abnormalities, rectal bleeding, hyperglycemia, arthralgia, etc., so it is contraindicated for those who are allergic to this drug.
If you want to take sildenafil citrate, you should take it under the guidance of a doctor, do not take the drug on your own, so as not to cause adverse effects.