What is a peptic ulcer?

Acid related ulcer. This term generally refers to stomach or duodenal ulcers. The 2 most common causes of stomach or duodenal ulcers are infection with the helicobacter pylori bacteria and the use of non-steroidal anti-inflammatory (NSAID) drugs such as aspirin, ibuprofen, naproxen, meloxicam, etc.
Ulcer in stomach/duo. It can be an ulcer either in the stomach or first part of small intestine, the duodenum. It can be caused by medications (typically non-steroidal medications like motrin, aleve), infection (H. Pylori) or overproduction of acid. Treatment may depend on cause, but typically an antacid is part of the treatment.