Which one of the following depresses brain activity and produces feelings of calmness, relaxation and drowsiness?

Morphine

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Valium

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Amphetamines

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Hashish

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Solution

The correct option is A Valium
Morphine is the main opium alkaloid that depresses respiratory centre and contributes to the fall in blood pressure.
Valium is a benzodiazepine (sedative) that gives a feeling of relaxation, calmness or drowsiness in the body.
Amphetamines are synthetic drugs and are stimulated in nature.
Hashish is hallucinogen.
Therefore, the correct answer is option B.

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