Are ammonia antacids and aspirin acidic compounds?

Ammonia antacids are not acidic; they are basic compounds that help neutralize stomach acid, providing relief from heartburn and indigestion. On the other hand, aspirin (acetylsalicylic acid) is an acidic compound, belonging to the class of nonsteroidal anti-inflammatory drugs (NSAIDs). While ammonia antacids raise pH levels, aspirin has a lower pH and can contribute to gastric acidity.