VIAGRA should not be utilised with REVATIO or with other PAH treatment options containing sildenafil or any other PDE5 inhibitors (which include Adcirca® [tadalafil])are allergic to sildenafil, as contained in VIAGRA and Revatio®, or any in the substances in VIAGRASildenafil shouldn't be made use of if sexual activity is inadvisable on account of