Chronic cocaine use can lead to downregulation of which specific dopamine receptors, contributing to the development of tolerance and withdrawal symptoms?
D1 receptors
D2 receptors
D3 receptors
D4 receptors
Related Questions
A drug, which causes hallucinations at high dosage, is obtained from
Erythroxylum coca
Papaver somniferum
Triticum
Rauwolfia serpentina
Which compound is formed by acetylation of morphine
Heroin
Cocaine
Tobacco
Marijuana
A chronic alcoholic is diagnosed with Wernicke-Korsakoff syndrome. Which neurotransmitter deficiency is MOST directly implicated in the pathogenesis of this condition, and which specific symptom is characteristic of Korsakoff's psychosis?
Dopamine deficiency leading to hallucinations
Serotonin deficiency leading to depression
Thiamine (Vitamin B1) deficiency leading to confabulation
Acetylcholine deficiency leading to memory loss
Consider the following statements
I. Opioids are the drugs, which bind to opioid receptors in the central nervous system and gastrointestinal tract
II. Heroin is a white, odourless, bitter, crystalline compound
III. Heroin is commonly called smack
Which of the statements given above are correct?
I and II
I and III
II and III
I, II and III
Which one the following statements is false?
Psychoactive drugs have the ability to alter the activity of the nervous system
Adolescence is marked by accelerated physical growth, development of reproductive organs and changes in functioning of the neuroendocrine system
Hallucinogen can alter a person’s thoughts, feeling and perceptions
Mescaline is a stimulant
Alcoholism may leads to
Skin cancer
Liver cirrhosis
Viral disease
Eye infections
Which one the following statements is false?
The Earth is mostly covered in water.
The Earth orbits the Sun.
The Earth is a perfect cube.
The Earth has a magnetic field.
Which is used as pain killer and is a very effective sedative
Amphetamines
Lysergic acid diethyl amides
Morphine
Cocaine
Morphine is
A very effective sedative and pain-killer
Very useful in patients who have undergone surgery
both (1) and (2)
Stimulant
Amphetamines are the drugs of
Narcotics
Sedatives
Stimulants
hallucinogens
