Alka Seltzer is often used to ease hangover symptoms like headaches, body aches, and an upset stomach. It contains aspirin, sodium bicarbonate, and citric acid. These ingredients can help reduce pain and settle your stomach. Some people say it works fairly quickly, often within 15 to 20 minutes, but it’s not a complete fix for every hangover symptom.

In this article, we’ll look at what Alka Seltzer actually does, whether it’s good for nausea, how it compares to other options, and when it's safe to take it before or after drinking.