Note that if you want to buy Sildenafil over the counter then you are restricted to a 50mg dose available as Viagra Connect. Its use is not studied in patients with severe hepatic impairment. It might work longer if you have mild to moderate erectile dysfunction. If you experience a prolonged or painful erection for 4 hours or more, contact your doctor immediately. Manufacturer advises reduce dose to 10 mg once daily with concurrent use of some potent inhibitors of CYP3A4 avoid with ketoconazole, itraconazole and ritonavir. Epistaxis was reported higher in sildenafil-treated patients with a concomitant oral vitamin K antagonist. · If you take sildenafil for pulmonary arterial hypertension, do not take Viagra® or other PDE5 inhibitors, including tadalafil (Cialis®) or vardenafil (Levitra®). Viagra® also contains sildenafil. If you take too much sildenafil or take it together with these medicines, the chance for side effects will be higher. Sildenafil is used to treat erectile dysfunction (ED) and to reduce blood pressure in pulmonary arterial hypertension (PAH). It is taken when needed for ED and daily for PAH. A headache, stomach upsets, and flushing are the main side effects, and it should not be taken within 24 hours of a nitrate. 5. Tips. Sildenafil is given by mouth in the form of a tablet or a liquid. It can also be given by injection in the clinic setting. It should be administered on an empty stomach at least 1 hour before food or 2 hours after food. If vomiting occurs when dosed on an empty stomach, give future doses with food. If vomiting continues, contact your veterinary.

Visit Us

Our goal is for you to leave our office with a memorable and enjoyable experience, which is why our welcoming and compassionate staff will do everything they can to make you feel right at home.

Call Us
Skip to content