The labels on over-the-counter, "adult low dose" aspirin recommend taking up to 48 81mg aspirin tablets (3.9g) per 24 hour period before checking with a doctor to see if that is okay. I was taking up to 1g per day at one point (for pain), thinking that it was a very low dose because of the labels. :/

https://dailymed.nlm.nih.gov/dailymed/image.cfm?id=93682&nam...