Erectile dysfunction is the persistent or recurring inability to achieve and/or maintain enough of an erection to be able to engage in satisfactory sexual intercourse. This is an issue linked to blood circulation. Phosphodiesterase-5 inhibitors (PDE5) – sildenafil, tadalafil, vardenafil and avanafil – are highly effective drugs. They work with 70% of patients.
Additionally, they are safe drugs that are only contraindicated for patients that must not engage in physical exercise (after a surgery) or that have been prescribed nitrate-releasing drugs such as nitro-glycerine (in patches or pills) or mononitrate and isosorbide dinitrate.
This paper describes various scenarios where these drugs are used and how to act when the patient asks for these drugs, by correctly assessing their circumstances and appropriately explaining the importance of having a check done before the drugs are prescribed by the doctor.