Indications: Erectile dysfunction is the inability of a man to maintain a firm erection long enough to have sex at least 25% of the time.
Premature ejaculation is persistent or recurrent ejaculation with minimal sexual stimulation before, upon or shortly after penetration and before the person wishes it.
loss of libido:
It is a lack of interest in sex for prolonged period of time. It is a gradual process in which one or both the partners lose interest in sexual routines and feel pressurised during the act.
self medication and over-dose is strictly not advisible.