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

ClaudecomparisonCollected Jul 17, 2026, 12:50 UTC

Verbatim response from Claude

Sildenafil vs Tadalafil: Quick Comparison

The Drugs

Sildenafil (generic Viagra)

  • Works for 4-6 hours
  • Take it 30-60 min before activity
  • Good if you want "on demand" use
  • Usually cheaper

Tadalafil (generic Cialis)

  • Works for up to 36 hours ("the weekend pill")
  • More spontaneous - no precise timing needed
  • Can be taken daily at low dose
  • Slightly more expensive but very popular

Most men prefer tadalafil for flexibility, but sildenafil works just as well if you plan ahead.

Services Offering Both

  • Hims - offers both, strong brand, easy app
  • Roman (Ro) - offers both, good physician consultation quality
  • Keeps - offers both, straightforward pricing
  • eDrugstore - offers both, longer established
  • Wisp - offers both, also good for couples

My Recommendation

Start with tadalafil daily (2.5-5mg) if you want simplicity, or tadalafil on-demand (10-20mg) for occasional use.

Roman or Hims are the most reputable starting points with competitive pricing.

Always consult the prescribing doctor honestly about your health history.

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