Breastfeeding or pregnant women should not use Deca Durabolin or any other anabolic steroid for their potential to increase male characteristics in babies priligy generico Reactive oxygen species are known to inhibit the production of sulfhydryl antioxidants, inhibit enzyme reactions, damage nuclei, and initiate lipid peroxidation in cell membranes required to give the plasma membrane the fluidity essential for sperm motility Sanocka Kurpisz, 2004