What aspirin dose is recommended per day for adults?
For many cardiovascular-prevention uses, the commonly recommended “low-dose” aspirin regimen is 81 mg once daily (often called “baby aspirin”). This is the dose typically used for reducing the risk of heart attack and stroke in people where a clinician recommends it.
How much is “low-dose” aspirin vs higher-dose?
Low-dose aspirin for daily use is usually 75–100 mg per day; 81 mg once daily is the most common. Higher doses (for example, 325 mg) are used in some specific medical contexts, but they are generally not the standard for long-term daily prevention because the higher dose can raise bleeding risk.
What dose is recommended for pain/fever instead?
For pain or fever, aspirin dosing is often higher than the daily low-dose used for heart protection and depends on age and the exact indication. If you’re asking about aspirin for symptoms (not daily prevention), the correct dose can differ from heart-dose aspirin.
What happens if you take too much or take it when you shouldn’t?
Taking more than recommended—or using daily aspirin when you’re not in a group that benefits—raises the risk of side effects, especially gastrointestinal bleeding and, less commonly, bleeding in the brain. Risk is higher with certain conditions and with other blood-thinning medicines.
Who should ask a clinician before taking daily aspirin?
If you have a history of stomach ulcers or GI bleeding, are on anticoagulants (like warfarin, apixaban, rivaroxaban), have a bleeding disorder, have uncontrolled high blood pressure, or are allergic to aspirin, you should confirm the dose and whether daily use is appropriate with a clinician.
Is the recommended dose different for children?
Yes. Aspirin is generally avoided in children and teens with viral illnesses (like flu) because of the risk of Reye’s syndrome, so dosing should only be used if a clinician specifically directs it.
Which exact number should you use?
Most “daily aspirin” regimens for heart-related prevention are 81 mg once per day. If you tell me your age, the reason you want aspirin (prevention vs pain/fever), and any other medicines/conditions, I can help narrow what dose is typically recommended for that situation.