From the given examples – ciprofloxacin, phenelzine, morphine, ranitidine – choose the drug used for : to get relief from pain

Explanation

To determine which drug among the given examples is used for pain relief, we can analyze each drug based on their classifications and uses:

1. **Ciprofloxacin**: This is an antibiotic used to treat bacterial infections. It does not provide pain relief.

2. **Phenelzine**: This is a monoamine oxidase inhibitor (MAOI) used as an antidepressant. It is not primarily used for pain relief.

3. **Morphine**: This is a narcotic analgesic, which means it is specifically designed to relieve pain. It works by acting on the brain to reduce the perception of pain.

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