Tylenol (paracetamol) and aspirin are both painkillers and they have certain advantages over each other. Aspirin belongs to a group of drugs known as nonsteroidal anti- inflammatory drug (NSAID). This is because they don't contain any steroid compound in their compositions. Aspirin is used majorly to reduce inflammation or swelling, to reduce the risk of heart problems.
Like I said, it can be used to relieve pain and can be used to treat fever because it has anti-pyretic effects. On the other hand, Tylenol (paracetamol), on the other hand, is an analgesic. According to researches, Tylenol has been confirmed to have more analgesic and anti-pyretic effects more than aspirin. Although, both are used as painkillers, but Tylenol (paracetamol) can only relieve pain, it can't reduce inflammation.
Because aspirin has the capacity to prevent blood clots, it is usually prescribed for people with heart problems. Although, both have so many side effects, but too much of Tylenol can damage the liver, while aspirin can cause ulcer or gastric irritation.