Final answer:
Excessive antacid use can disrupt the body's acid-base balance and lead to symptoms such as confusion and muscle twitching.
Step-by-step explanation:
Excessive use of antacids can have several side effects. One possible side effect of excessive antacid use is a disturbance in the body's acid-base balance. Antacids are bases, so taking them can increase the pH level in the body. This can disrupt the normal acid-base balance, which is essential for various physiological processes. For example, if the blood becomes too alkaline due to excessive antacid use, it can lead to symptoms such as confusion, muscle twitching, and even seizures.