Cialis (tadalafil) facts. Cialis is the trade name for a drug called Tadalafil. Cialis is one of a class of drugs known as PDE-5 (Phosphodiesterase type 5) inhibitors. Cialis and the other PDE-5 inhibitors can help men with erectile dysfunction (male impotence) by enhancing the erectile response when a man is sexually stimulated. Aside from Cialis, the other drugs in this class are Viagra (Sildenafil) and Levitra (Vardenafil).
Epilepsy: A condition that occurs due to some permanent damage to the brain that then irritates the area making a person suffer from epileptic seizures. This irritation causes the brain to send out abnormal signals which can be, in some cases excessive yawning. Again a rare cause for excessive yawning. If you suffer from the problem, it is best you get a complete analysis. According to a study, yawning may be associated with a number of brain related ailments and may be seen in patients with this existing condition and may occur after a seizure [4].
Primary Yawning Headache. Yawning can produce pain in the head, or behind the ear. The classic cause is an elongated styloid process, but there are cases described without any cause being found, and they are called Primary Yawning Headache.