Which medicine is commonly used to treat headaches?

aspirin is the conventional name of the scientific name acetyl salisylic acid

The aspirin is a simple and wonderful thing .

This was a question back some time ago, but with a much better explanation about the White Willow inside of the bark the scrape process. Then how the demand (need) was more than supply, chemists were able to breakdown the components and recreate it in a pharmaceutical lab. That is called Biorganic Chemistry. I had a cousin trained by the Army. He 'created' some Mescaline one time. (don't tell) Credit due, he did his job well...

hamada, I never use Aspirin. Get side effects from this and Tylenol. Any type of tylenol....i have to take prescriptions medications

Aspirin it makes your blood thinner.

Coo, I never knew that

Aspirin is the first medicine made of the founder of BAYERN, Leverkusen, Germany if I remember right.

I've got aspirin

Dorothy , Tylenol is the brand name for Paracetamol, also known as Acetaminophen.

But medically speaking I can't take aspirin but I use Tylenol.

Aspirin or Acetylsalacylic Acid is the modern, synthesized version whose origins lie in Willow bark which was used up to 2500 years ago.