2010: Actor Michael Douglas makes headlines when he admits to AARP magazine that he has used erectile dysfunction drugs with wife, actress Catherine Zeta-Jones. "Bless her that she likes older guys," he says. "Some wonderful enhancements have happened in the last few years -- Viagra, Cialis -- that can make us all feel younger."
2011: A federal judge extends Pfizer's U.S. patent for Viagra, making sure generic brands cannot come to market until 2019, according to the Wall Street Journal.
April 2012: The FDA approves a new erectile dysfunction drug called avanafil, which will be sold under the brand name Stendra. Stendra is taken on an as-needed basis 30 minutes before sexual activity, according to a news release.