Did men stop the tablet for these?
Discontinuation due to adverse events was 3.4% on vardenafil and 1.1% on placebo in placebo-controlled trials.
Most men in those trials stayed on the tablet. A bothersome flush still belongs on the next clinic call.
Dose can raise the same four names
Placebo-controlled trials suggested a dose effect for headache, flushing, dyspepsia, nausea, and rhinitis across 5, 10, and 20 mg.
Climbing to 20 mg to 'make it worth it' can buy more of those names. The start scan is 10 mg.
When flushing is not the emergency
Sudden vision loss, sudden hearing change, and an erection past four hours stop the tablet and start a care visit.
A red face that fades is not those events. Do not ignore the ones that do not fade.
Which reaction sits first on the list?
Headache is the first ≥2% row: 15% on drug, 4% on placebo. That is the answer this page came for.
The consumer leaflet also leads with headache, then flushing, stuffy or runny nose, and indigestion.
Worldwide trials counted over 4430 men (mean age 56, range 18 to 89). Over 2200 stayed on drug 6 months or longer, and 880 for at least a year.
Four-hour erection is another scan
Priapism language lives on the four-hour scan.
This page posted headache first. It will not grow into a warning catalog.