What is the proper dosage of Bayer aspirin for adults?

The recommended dosage of Bayer or other aspirin products for treating pain or reducing fever in adults is 325 to 650 milligrams every four hours as needed up to 4 grams per day, according to Drugs.com. For treating stable angina pectoris, doctors recommend a 75 to 325 milligram dose daily.

Following a heart attack, doctors often recommend taking 81 milligrams of low-dose aspirin daily to reduce the risk of recurring heart attacks or strokes, according to Bayer. Bayer manufactures several aspirin products, including Bayer women’s low-dose aspirin, chewable aspirin and Bayer Back & Body, among others, but recommends consulting a doctor before beginning an aspirin therapy regimen.