Pronethalol (Alderlin Nethalide) was an early non-selective beta blocker clinical candidate. It was never used clinically due to carcinogenicity in mice which was thought to result from formation of a carcinogenic naphthalene epoxide metabolite.
This page contains content from the copyrighted Wikipedia article "Pronethalol"; that content is used under the GNU Free Documentation License (GFDL). You may redistribute it, verbatim or modified, providing that you comply with the terms of the GFDL.