What should you take for a headache: Tylenol (acetaminophen) or aspirin?
For many common headaches, both Tylenol (acetaminophen) and aspirin can help. Which one is safer depends on your health history, other medicines you take, and how your headache started.
When acetaminophen (Tylenol) is usually a good first choice
Tylenol is often a go-to option if you:
- Need something that’s generally easier on the stomach than aspirin
- Have a history of ulcers or stomach bleeding
- Are on blood thinners (aspirin can increase bleeding risk)
A key limit is that you can’t take too much acetaminophen from all sources (including cold/flu products), because excess doses can damage the liver.
When aspirin might be an option (and when to avoid it)
Aspirin can work for some headaches, but it’s commonly avoided if you:
- Have a history of stomach ulcers or GI bleeding
- Take anticoagulants or have a bleeding disorder
- Have aspirin allergy or aspirin-triggered asthma
- Are a child or teen with viral illness symptoms (Reye’s syndrome risk)
What matters most: your symptoms and safety red flags
If you have severe, sudden, or unusual headache symptoms—like weakness, confusion, fainting, stiff neck, fever, head injury, vision loss, or the “worst headache” of your life—don’t self-treat; get urgent medical care.
If you’re asking for dosing guidance
If you tell me your age, any medical conditions (especially liver disease, ulcers/bleeding, kidney disease), and what other meds you take (especially blood thinners), I can help you choose between acetaminophen vs aspirin and avoid common safety pitfalls.