Dr. James Ikol, Urologist, Kenyatta National Hospital discusses Premature Ejaculation, the causes, its effects and how couples can get assistance. DYNAMO® DELAY is a registered Over-the-Counter medicine that treats Premature Ejaculation in men. It contains 13% lidocaine, a topical anesthetic agent. This non-irritating spray temporarily reduces oversensitivity and prolongs the time until ejaculation.