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Sildenafil vs tadalafil: which should I ask for and which service offers both?

ClaudecomparisonCollected Jun 17, 2026, 13:22 UTC

Verbatim response from Claude

Sildenafil vs. Tadalafil: Quick Comparison

Sildenafil (Viagra generic)

  • Works for: 4-6 hours
  • Best if: You want something taken as-needed, closer to the moment
  • Take it: 30-60 minutes before activity
  • Consideration: More affected by food/alcohol

Tadalafil (Cialis generic)

  • Works for: Up to 36 hours
  • Best if: You want spontaneity or plan to take it daily
  • Take it: Can be taken daily at low dose or as-needed
  • Often preferred for its flexibility

Services Offering Both

Hims (forhims.com) - offers both, strong branding, easy app Roman (getroman.com) - offers both, good medical oversight, transparent pricing Keeps - primarily hair loss but does offer ED meds Rex MD - offers both, often more affordable pricing Lemonaid Health (now part of 23andMe Health) - offered both

My Recommendation

Ask for tadalafil (daily 5mg) for most men - the flexibility is a significant lifestyle advantage.

Try Roman or Hims - both have solid physician review processes and competitive generic pricing.

Generic versions of both are very affordable (~$1-3/pill through these services).

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