Before comparing brands, it helps to know the categories:
- Standard generic pills — sildenafil and tadalafil, cheap, proven, first-line for most men.
- Compounded multi-ingredient medications — several actives in one dose (e.g. a "quad-blend"), aimed at men where a single pill underperformed; not FDA-approved the way generics are.
- Different formats — chewables and dissolvables, same medications in an easier-to-take form.
- Non-drug options — vacuum devices and, for specific cases, other treatments a specialist may raise.