Sildenafil, which is also called sildenafil citrate, comes as an oral tablet. The drug also comes as an oral liquid suspension and IV infusion. However, this article does not cover these forms. It ...
Sildenafil is a prescription drug. It comes in the form of a tablet and suspension (liquid). Both are taken by mouth. It also comes in an intravenous (IV) form, which is only given by a doctor.
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