Duratia, which contains the active ingredient dapoxetine, is used primarily to treat premature ejaculation (PE), not erectile dysfunction (ED). Duratia is not designed to cause or maintain an erection directly. However, when used in combination with ED medications or in individuals who may be overly sensitive to its effects, it might contribute indirectly to prolonged arousal.

Although Duratia itself is unlikely to cause an erection lasting more than 4 hours (priapism), such a condition is considered a medical emergency and can occur if misused or mixed with other drugs like sildenafil or tadalafil. If an erection lasts more than 4 hours, immediate medical attention is necessary to prevent permanent damage. Always use Duratia under the guidance of a healthcare provider to avoid serious complications.