What is the prevailing opinion on the application of verapamil salves to the affected area (plaque)of PD? I could not find it in the treatment tab site/page.

There is no evidence whatsoever from properly done studies that topical verapamil provides any beneficial effects to patients with Peyronie’s disease. In fact, at least one study demonstrated that there was no evidence that verapamil, when applied over the area of plaque, actually reaches the underlying plaque in any significant, measurable level that might activate the changes that are known to occur as a result of direct injection. Therefore, it is the opinion of most experts that topical verapamil is of no value when used with the currently available gels and salves.