Which of the following is a life saving drug in anaphylactic shock?

Options

A. Cortisol
B. Histamine
C. Zidovudine
D. Pencillin

Answer

### Step-by-Step Solution:

1. **Understanding Anaphylactic Shock**:
- Anaphylactic shock is a severe and potentially life-threatening allergic reaction that occurs rapidly after exposure to an allergen.

2. **Recognizing the Need for Treatment**:
- In cases of anaphylactic shock, immediate treatment is crucial to counteract the severe allergic response.

3. **Identifying Common Treatments**:
- The primary treatment for anaphylactic shock is the administration of drugs that counteract the effects of histamines, which are chemicals released during allergic reactions.

4. **Evaluating the Options**:
- **Penicillin**: An antibiotic, not used for anaphylactic shock.
- **Zidovudin**: An antiretroviral drug used for HIV, not relevant for allergic reactions.
- **Histamine**: A chemical involved in allergic reactions, not a treatment.
- **Cortisol**: A steroid that can act as an antihistamine and is used in severe allergic reactions.

5. **Selecting the Correct Answer**:
- Based on the evaluation, the correct answer is **Cortisol**, as it acts as a life-saving drug in cases of anaphylactic shock.

### Final Answer:
- The life-saving drug in anaphylactic shock is **Cortisol**.