Compare Cialis vs. Viagra side effects, duration, and safety tips. Learn how to avoid discomfort and when to seek medical help. Viagra and Cialis are oral medications for treating erectile dysfunction. Check out side-by-side comparisons of these ED pills. It’s not recommended to take Cialis and Viagra together. Instead, take one or the other. Combining medications can lead to health complications like low blood pressure and other side effects. Which erectile drug, Viagra or Cialis, is better? Discover the difference between the top two ED drugs and find out which one is best for you. In this article, we explore Viagra vs. Cialis for erectile dysfunction (ED), look at how Cialis and Viagra compare on side effects, and suggest the best places to buy them online. Sildenafil (Viagra®) and tadalafil (Cialis®) are two common medications used to treat a range of health conditions, including symptom management of benign prostatic hyperplasia, pulmonary arterial hypertension, and most commonly, for ED treatment. Cialis and Viagra both treat ED, but differ in how long they last and how you take them. Here’s what to know when talking to your doctor. While it may be tempting to combine Viagra and Cialis, this is unsafe and never recommended without medical supervision. Both medications act on the same pathway and can amplify side effects when taken together. Combining Cialis and Viagra is not safe and isn’t proven to be more effective than using a single ED medication in large clinical studies. Risks include dangerously low blood pressure, heart problems, and priapism. Safer options include switching drugs or adjusting the dose. Which is better viagra or cialis? Cialis and Viagra are both PDE5 inhibitors used for the treatment of erectile dysfunction (ED). Both only work when a man is sexually aroused. Cialis lasts for around 36 hours compared with only 4 to 5 hours for Viagra.