I've noticed this "interesting" but exciting side effect as well. I was recommended to try Motrin 800mg tabs, which contain a mix of Ibuprofen and other inflammation inhibitors. I'm a 64 year old man dealing with herniated lumbar discs now for over a year, and ED for about 3 years. I was taking 2 tablets 3 times a day at first, but came down to 1 tablet 3 times a day with food. I noticed one morning and then subsequent mornings that I began waking up to morning wood! Wow! And even through the day, the sight of an erotic image would start the erectile process as it did in my younger years. So I researched it and discovered that not only does it thin your blood, which increase blood flow in the penile arteries and capillaries, but it's anti-inflammatory effects reduce the nerve irritation and pain which would normally block the nerve root to the genitals! So, now the penile nerves can conduct their signal effectively when the herniated disc nerves are cooled down by the Ibuprofen! Of course, I have been employing spinal decompression exercises recommended by my chiropractor and physical therapist; and noticed now for many months that when I do the lumbar decompression exerciises, that the nerves to the penis instantly connect and induce an erection. So yes, stop the nerve and disc inflammation, and bring back your erections!