From the given examples – ciprofloxacin, phenelzine, morphine, ranitidine – choose the drug used for : treating allergic conditions

Explanation

To determine which drug from the given examples is used for treating allergic conditions, we will analyze each drug mentioned: ciprofloxacin, phenelzine, morphine, and ranitidine.

### Step-by-Step Solution:

1. **Identify the Drugs**:
- The drugs provided are:
- Ciprofloxacin
- Phenelzine
...