When I started getting anxious about more frequent loss of erections I went the pharmaceutical route. Viagra is really effective, but sometimes causes headaches and a flushed feeling in my face. Now trying Levitra, which comes on more gently and doesn’t have the above 2 symptoms for me, but even with 20 mg, produces erections that are less reliable, meaning we rarely can have vaginal sex to conclusion, which distresses me a little and my partner more. Any advice?