Viagra is meant to be used in Adult men, and it is not likely for use in Females that are Expecting or breastfeeding. Even so, Viagra will not be expected to get destructive to the fetus.Sildenafil improves the influence of NO by inhibiting phosphodiesterase style 5 (PDE5), that's accountable for degradation of cGMP from the corpus cavernosum. Sild