Which of the following drugs is capable of producing a state of euphoria or increased energy ?

Options

A. Coke obtained from Erythroxylum coca
B. Heroin obtained from Cannabis sativa
C. Charas obtain from Claviceps purpurea
D. Morphine obtianed from Papaver somniferum

Answer

To solve the question regarding which drug is capable of producing a state of euphoria or increased energy, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for a drug that can induce euphoria or increased energy. Euphoria is a state of intense happiness or excitement.

2. **Identify Common Drugs**: Some common drugs known to produce euphoria include cocaine, amphetamines, and certain stimulants.

3. **Research Cocaine**: Cocaine is a well-known stimulant that is derived from the leaves of the Erythroxylum coca plant. It is known for its euphoric effects and ability to increase energy levels.

4. **Mechanism of Action**: Cocaine works by blocking the reuptake of neurotransmitters such as dopamine, norepinephrine, and serotonin in the brain, leading to increased levels of these chemicals in the synaptic cleft, which contributes to feelings of euphoria.

5. **Conclusion**: Based on the information gathered, cocaine is the drug that fits the criteria of producing a state of euphoria or increased energy.

6. **Final Answer**: Therefore, the correct answer to the question is **cocaine**.