While antacids and antiallergic drugs interfere with the function of histamines, why do these not interfere with the function of each other ?

Explanation

### Step-by-Step Solution:

1. **Understanding Histamines**: Histamines are organic nitrogenous compounds involved in local immune responses, regulation of physiological functions in the gut, and acting as neurotransmitters for the brain and spinal cord.

2. **Role of Antihistamines**: Antihistamines are drugs that block the action of histamines at specific receptors (H1 receptors) to alleviate allergy symptoms such as itching, sneezing, and runny nose.

3. **Role of Antacids**: Antacids are substances that neutralize stomach acidity. They do not interact with histamine receptors directly but can affect the overall acidity in the stomach.

...