P-Force is typically taken orally before sexual activity, approximately 1-2 hours before engaging in sexual intercourse. It's important to follow the prescribed dosage and usage instructions provided by your healthcare professional. Sildenafil citrate is a phosphodiesterase type 5 (PDE5) inhibitor that helps improve blood flow to the penis, aiding in achieving and maintaining an erection. Dapoxetine is a selective serotonin reuptake inhibitor (SSRI) that can help delay ejaculation and improve control over ejaculation, thus addressing issues related to premature ejaculation.