Drugs which develop physical dependence and characterised by strong withdrawal effects are

Options

A. Opiates
B. Sedatives
C. Stimulants
D. Tranquillisers

Answer

To answer the question regarding which drugs develop physical dependence and are characterized by strong withdrawal effects, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Physical Dependence**:
- Physical dependence refers to a condition that arises from the chronic use of a drug, where the body adapts to the presence of the drug. If the drug is suddenly reduced or stopped, it leads to withdrawal symptoms.

2. **Defining Withdrawal Effects**:
- Withdrawal effects are the unpleasant physical and psychological symptoms that occur when a person stops using a drug that they have become dependent on. These symptoms can vary in severity and can include anxiety, nausea, pain, and other physical discomforts.

3. **Analyzing the Drug Categories**:
- **Opiates**: These are narcotic drugs that depress the central nervous system, reduce pain, and induce sleep. They are known to cause physical dependence and have strong withdrawal effects when usage is stopped. An example is heroin.
- **Sedatives**: These drugs promote calmness and induce sleep but do not typically lead to strong withdrawal symptoms compared to opiates.
- **Stimulants**: These drugs increase alertness and energy but do not usually cause physical dependence characterized by severe withdrawal effects.
- **Tranquilizers**: These are used to treat anxiety and tension but also do not have the same level of physical dependence and withdrawal effects as opiates.

4. **Conclusion**:
- Based on the analysis, the drugs that develop physical dependence and are characterized by strong withdrawal effects are **opiates**.

### Final Answer:
**Opiates** are the drugs which develop physical dependence and are characterized by strong withdrawal effects.

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