Which of the following is not used as an antidepressant ?

Options

A. lproniazid
B. Phenelzine
C. Salvarsan
D. Nardil

Answer

To determine which of the following options is not used as an antidepressant, we will analyze each option provided:

1. **Ipronazate**: This medication is known to be an antidepressant. It is also referred to by names such as Equilibrium and Equanil. Therefore, this option is used as an antidepressant.

2. **Phenazine**: This is another name for Phenelzine, which is a well-known antidepressant. It is used to treat depression and anxiety disorders. Thus, this option is also used as an antidepressant.

3. **Selvazan**: This is not a commonly recognized antidepressant. In fact, upon further investigation, it is identified as Salvarsan, which is an antibiotic used to treat infections. Therefore, this option is not used as an antidepressant.

4. **Nartin**: This is another name for Nardil, which is indeed an antidepressant used to treat depression and anxiety disorders. Hence, this option is used as an antidepressant.

Based on the analysis above, the answer to the question "Which of the following is not used as an antidepressant?" is **Selvazan (Salvarsan)**.

### Summary of the Solution:
- Ipronazate: Used as an antidepressant.
- Phenazine: Used as an antidepressant.
- Selvazan: Not used as an antidepressant (it is an antibiotic).
- Nartin: Used as an antidepressant.

**Correct Answer: Selvazan (Salvarsan)**