Recreational drugs

Sildenafil citrate improves sperm motility but causes a premature acrosome reaction in vitro

Smoke, alcohol and drug addiction and male fertility

The effects of opiate consumption on serum reproductive hormone levels, sperm parameters, seminal plasma antioxidant capacity and sperm DNA integrity

Sildenafil citrate (Viagra) impairs fertilization and early embryo development in mice

MDMA (ecstasy) delays pubertal development and alters sperm quality after developmental exposure in the rat