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Uroselectivity: Inhibition of Phenylephrine-Mediated Smooth Muscle Contraction
| pA2 | |||
| Compound | α1A: Prostate | α1B: Mesenteric Artery | α1A/α1B |
| Silodosin | 9.64 ± .12 | 7.47 ±.12 | .068 |
| Prazosin | 8.48 ± .04 | 9.15 ± .08 | 4.675 |
| Tamsulosin | 9.78 ± .09 | 9.36 ± .24 | .379 |
Data from Murata S et al.30
