New to me is the site FDAble, which says it is "A fast, simple search engine for all drug and vaccine Adverse Event information reported to the FDA."
I entered these search parameters: "Drug Names: viagra OR sildenafil AND Reaction Names: death AND the outcome of the event was DE AND the person reporting the event was MD"
I got 140 hits. Is that a lot?
I'll leave it up to you to search for yourself and report back to me.