The concomitant administration with the protease inhibitor ritonavir considerably raises serum concentrations of sildenafil (eleven-fold increase in AUC). If VIAGRA is prescribed to clients taking ritonavir, caution ought to be applied. Information from topics exposed to substantial systemic levels of sildenafil are limited. Viagra should only be taken when wanted, https://archerp5308.blog-gold.com/43490521/top-latest-five-viagra-urban-news