Why not just use some effective N. O. 2 product? Both increase nitric oxide and dilate arteries.
But I would think N. O. 2 would have less contraindications and be overall safer.
If you're gonna use cialis look up contraindications just to be safe. Seems I read certain things(might have been antihistamines counteract it).
N. O. 2 seems to make the volume of blood pumped by each pump go up and I'm not sure if cialis has all the cardiovascular benefits of N. O. 2 or not.