The pH level of antacids, such as Rolaids and Tums, is 11, according to SciTrition. Tums is manufactured by GlaxoSmithKline while Rolaids is a brand marketed by McNeil-PPC.
An antacid, which is sold under the generic name calcium carbonate antacid, is a type of medication that is orally taken to neutralize excessive acidity in the stomach. This drug relieves symptoms of indigestion, heartburn and upset stomach, states MedicineNet.
Rolaids and Tums are high alkaline drugs that counteract the acidic condition in the stomach by increasing the pH level. However, this may inadvertently interfere with essential digestive processes. The feeling of relief after taking an antacid is only short-term compared to the long-term effects of antacids in the body, explains SciTrition.