Dapoxetine and delay spray can be used to prolong ejaculation, but should be used with caution. Dapoxetine prolongs ejaculation by affecting neurotransmitters, while delay spray reduces sensitivity through local anesthesia. Concurrent use may require dosage adjustment, and attention should be paid to individual differences and potential side effects. Use it under the guidance of a doctor and pay attention to your body\’s reaction to ensure safety and effectiveness.