Silden is used to treat erectile dysfunction in men by increasing blood flow to the tissues surrounding the penis, which helps improve the ability to get an erection. It works by inhibiting a certain enzyme that causes constriction of blood vessels, which leads to relaxation of the surrounding muscles and expansion of the vessels at the appropriate time for an erection. Its effect appears after a short period of taking it, so it is preferable to use
Silden before intercourse for a sufficient period to obtain a satisfactory result. It is also not recommended to repeat it more than once a day. It should be taken on an empty stomach or after a light meal to achieve its full benefit, with caution in the case of chronic diseases or taking other medications that affect the heart or blood pressure.