There is a potential for cardiac risk during sexual activity in patients with pre-existing cardiovascular disease. Therefore, treatments Anadrol 50mg pills ED, including Stendra, should not be used in Anadrol for whom sexual activity is inadvisable because of their underlying cardiovascular status. Patients with left ventricular outflow obstruction e. The following groups of patients were not included in clinical safety and efficacy trials for Stendra, and therefore until further information is available, Stendra is not recommended for the following groups:.