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Cialis Back Pain May Be Due To Greater PDE11 Affinity Than Viagra, Levitra

This article was originally published in Pharmaceutical Approvals Monthly

Executive Summary

Cialis’ greater affinity for PDE11 than other PDE5 inhibitors is the likely explanation for the greater incidence of back pain and myalgia seen with the Lilly/Icos erectile dysfunction agent, FDA speculates in review documents.

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