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Previous treatment by pharmacologic name, dosage, and number of pills/tries for erectile dysfunction.
| Relative frequency, % (n) | |
|---|---|
| Pharmacologic name | |
| Sildenafil | 42.1% (16) |
| Avanafil | 23.6% (9) |
| Tadalafil | 26.3% (10) |
| Vardenafil | 18.4% (7) |
| Alprostadil cream | 5.2% (2) |
| PDE5i dosage | |
| Highest | 45.2% (14) |
| Intermediate | 35.5% (11) |
| Lowest | 19.3% (6) |
| Reason for referral | |
| Lack of efficacy of PDE5i | 97.4% (37) |
| Adverse effect of PDE5i | 2.6% (1) |
PDE5i = phosphodiesterase 5 inhibitor.
