Antacid
/æntˈæsɪd/
Definition 1 of 1
Pro Tip 1/3Slang Absent
Antacid is medical terminology, typically not used as slang or in casual contexts. 
My doctor recommended an antacid for my indigestion.
Pro Tip 2/3Not a Cure
Antacids offer temporary relief, not a permanent cure for stomach issues. 
Antacids will alleviate your symptoms, but see a doctor if the problem persists.
Pro Tip 3/3Immediate Relief
Antacids are known for acting quickly to ease discomfort. 
She reached for an antacid immediately after feeling the heartburn.