Synthetic drugs structurally related to adrenaline are

Options

A. Amphetamines
B. Barbiturates
C. Analgesics
D. Hallucinogens

Answer

To answer the question "Synthetic drugs structurally related to adrenaline are?", we will analyze each option provided and determine which one has a structure similar to adrenaline.

### Step-by-Step Solution:

1. **Understanding Adrenaline**:
- Adrenaline is a hormone produced by the adrenal glands, specifically from the adrenal medulla.
- It has a specific chemical structure that includes a benzene ring, hydroxyl groups, a nitrogen atom, and a methyl group.

2. **Analyzing the Options**:
- **Option 1: Amphetamine**
- Amphetamine has a structure that includes a benzene ring similar to adrenaline.
- It also contains a side chain with a free methyl end and an amine group, making it structurally similar to adrenaline.
- Therefore, amphetamine is a synthetic drug that is structurally related to adrenaline.

- **Option 2: Barbiturates**
- Barbiturates have a different structure that includes a ring with nitrogen atoms and do not resemble the structure of adrenaline.
- They are primarily used as sedatives and do not share structural similarities with adrenaline.

- **Option 3: Analgesics**
- Analgesics, such as paracetamol or morphine, are pain-relieving drugs that belong to a different class of compounds.
- Their structures do not resemble that of adrenaline, making this option incorrect.

- **Option 4: Hallucinogens**
- Hallucinogens, like marijuana, have distinct structures that do not relate to adrenaline.
- They are classified differently and do not share structural characteristics with adrenaline.

3. **Conclusion**:
- After analyzing all the options, we find that the only synthetic drug structurally related to adrenaline is **amphetamine**.

### Final Answer:
The synthetic drug structurally related to adrenaline is **amphetamine**.

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