card in question: What drug class do vardenafil, tadalafil, and sildenafil belong to?
{{c1::PDE-5 inhibitors}}
support
agree with Ahmed
will accept and submit the dupe
card in question: What drug class do vardenafil, tadalafil, and sildenafil belong to?
{{c1::PDE-5 inhibitors}}
support
agree with Ahmed
will accept and submit the dupe