Key takeaways
- Both are PDE5 inhibitors, but their product labeling and duration profiles differ.
- Nitrates and certain health conditions can create serious safety concerns that require clinician review.
- A prescriber should review cardiovascular history, all current medicines, timing goals, and prior response before choosing an option.
How they compare
EDITORIAL GUIDETopicSildenafilsildenafil citrateTadalafiltadalafil
Medication familyPDE5 inhibitorPDE5 inhibitor
Common discussionAs-needed erectile-dysfunction treatmentAs-needed or selected daily erectile-dysfunction treatment
Product formOral tabletOral tablet
AccessPrescription requiredPrescription required
DecisionRequires an individual clinician reviewRequires an individual clinician review
Primary sources
Labeling can change. Use the current FDA prescribing information and speak with a licensed clinician or pharmacist before making a treatment decision.