Headache from viagra and cialis: Causes, Remedies, and Prevention
Cialis (tadalafil) is a medication used to treat erectile dysfunction (ED) and benign prostatic hyperplasia (BPH). One of the most common side effects of Cialis is headaches. These headaches may be mild or severe and can last for a short period or up to a few days. Cialis works by increasing blood flow to the penis, which can cause the blood vessels in the head to expand, leading to headaches. This side effect is more likely to occur if you take Cialis on an empty stomach or with alcohol. Taking the medication with food or reducing the amount of alcohol you consume can help reduce the likelihood of getting a headache.






