Which of the following are used as analgesics ?

Options

A. Aspirin
B. Heroin
C. Promethazine
D. Serotnin

Answer

To determine which of the given options are used as analgesics, we will follow a step-by-step approach:

### Step 1: Define Analgesics
Analgesics are medications or drugs specifically designed to relieve pain. They are commonly referred to as painkillers or pain relievers.

**Hint:** Remember that analgesics are primarily focused on pain relief.

### Step 2: Analyze Each Option
We will evaluate each option provided to see if it qualifies as an analgesic.

- **Aspirin**: This is a well-known analgesic. It is commonly used to relieve pain and is also utilized in surgical settings to manage pain before and after procedures.

**Hint:** Think about common over-the-counter pain relievers; Aspirin is one of them.

- **Heroin**: Although heroin is an opioid and can relieve pain, it is also highly addictive and not typically used in a medical context for pain relief due to its potential for abuse. However, it does have analgesic properties.

**Hint:** Consider the context of usage; while it can relieve pain, its addictive nature limits its medical application.

- **Promethazine**: This drug is primarily used to treat allergies and does not have analgesic properties. It is not designed to relieve pain.

**Hint:** Focus on the primary use of the drug; if it’s for allergies, it’s not an analgesic.

- **Serotonin**: This is a neurotransmitter that affects mood and emotional states. It is not used as an analgesic.

**Hint:** Think about the function of serotonin; it’s more about mood regulation than pain relief.

### Step 3: Conclusion
Based on the analysis:
- **Aspirin** is an analgesic.
- **Heroin** can be considered an analgesic but is not typically used in practice due to its addictive nature.
- **Promethazine** and **Serotonin** are not analgesics.

Thus, the correct answers are **Aspirin and Heroin**.

**Final Answer:** Aspirin and Heroin are used as analgesics.