Cenforce D Extra Power, its commonly marketed formulation contains sildenafil + dapoxetine, although the exact strengths should be confirmed from the pack because listings vary. Effect on sperm and fertility Sildenafil: Available human research found no significant adverse effect on sperm count, motility, morphology, or ejaculate quality after a 100-mg dose. Dapoxetine: Current evidence does not show a clear harmful effect on sperm quality. A recent *****-medicine guideline notes early evidence suggesting no effect on sperm quality. Therefore, Cenforce D Extra Power should not be assumed to reduce sperm count or cause infertility, but long-term fertility data for the specific combination are limited. If you're actively trying to conceive or already have fertility concerns, discuss the medicine with a doctor rather than using it routinely without supervision. Also, some online listings describe an unusually high 100-mg dapoxetine version; standard dapoxetine dosing discussed in clinical guidelines is generally 30 or 60 mg, so checking your package's ingredients and strengths is particularly important.