Sildenafil, a PDE5 inhibitor, helps increase blood flow to the penis, assisting in achieving and maintaining an erection in response to sexual stimulation.Premature Ejaculation: Dapoxetine, a selective serotonin reuptake inhibitor (SSRI), helps delay ejaculation, improving control and satisfaction during sexual activity.Onset of Action: Suhagra Force typically starts to work within 30 to 60 minutes. The effects can last up to 4-6 hours for erectile dysfunction and help manage premature ejaculation.