Premature ejaculation (PE) is a distressing male sexual dysfunction that can be present from the first sexual encounter or can develop later in life. Men with premature ejaculation appear to go through the same process of ejaculation as other men, but it happens more quickly and with a reduced feeling of control.

Dapsone antibacterial agent, which is active concerning Mycobacterium leprae and tuberculosis. It has bacteriostatic action similar to antagonists of p-aminobenzoic acid.