So as you see, Cialis is so much more than just a sexual performance drug!! This impacts blood flow and causes relaxation of the blood vessel walls. This is much longer than the competing Viagra, which only lasts around 4 hours. It usually subsides in a short time. This is particularly true for older men who are determined to keep building and maintaining muscle, but who may suffer with common health issues.From what I can tell, I have had a few people say it’s great with stronger erections and lasts way longer, but also others have had major side effects like dizziness and headaches . Study: Tadalafil Improves Lean Mass and Endothelial Function in Nonobese Men With Mild ED/LUTS: In Vivo and in Vitro Characterization Purpose: Phosphodiesterase type-5 inhibitor administration in diabetic men with erectile dysfunction (ED) is associated with reduced waist circumference. We evaluated potential effects of daily tadalafil administration on . heart attack symptoms – chest pain or pressure, pain spreading to your jaw or shoulder, nausea, sweating. Common Cialis side effects may include: headache; flushing (warmth, redness, or tingly feeling); nausea, upset stomach; stuffy nose; or. muscle pain, back pain, pain in your arms, legs, or back. This is not a complete list of side effects.