Aspirin

I’m 16 weeks pregnant with my second baby and my OB prescribed me 162 mg of aspirin a day because of high blood pressure issues I had with my first.

My question is if you were prescribed the same thing, do you take a 81 mg tab in the morning and another at night or do you take 2 tabs all at once?

Just to clarify, I will call my doctor if I really need to, I am just looking for personal experiences. The pharmacist said it was fine either way, I’m just curious as to what was the most common or preferred way.

Thank you!