Can eno tums (calcium carbonate) cure stomach ulcer?

Usually not: Tums contain calcium carbonate, which is very good and very bad for ulcers in the stomach or duodenum (intestine). The good is it's a great antacid. The bad is calcium strongly stimulates acid production. So two hours later, you have more acid than ever. Are you sure you have an ulcer? If so, proton pump inhibitors like Omeprazole work well, and often h2 blockers like ranitidine work too.

No: Eno is a fruit salt antacid used to decrease bloating. Eno releases trapped gas which can then be discharged by belching. Eno neutralizes excess stomach acid.