Chemistry · Biology

Pharmacology and Therapeutics

1,699 Questions

Engage with critical pharmacology and therapeutics questions covering drug classifications and therapeutic mechanisms. Topics include chemical absorption, medication formulations, and pharmacogenomics. This collection is useful for students preparing for medical entrance, nursing, and science competitive examinations.

Chemical absorption routesDrug formulation typesMedication mechanismsEnzyme inhibitorsPharmacogenomic tests

Pharmacology and Therapeutics Questions

Multiple choice evs - i community health and hygiene drug, tobacco and alcohol consumption addiction and dependence important stages in agricultural development disorders of nervous system

Diacetylmorphine hydrochloride is 

  1. Heroin

  2. Brown sugar

  3. Methadone

  4. Both A and B
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Diamorphine hydrochloride binds to opioid receptors in the central nervous system. It is a type of analgesic agent and a type of opiate. Also called diacetylmorphine hydrochloride and heroin. diacetylmorphine hydrochloride is also known as brown sugar.
So the correct option is B.

Multiple choice biology cell biology and biotechnology drug, tobacco and alcohol consumption addiction and dependence community health and hygiene

Scopolamine or "truth drug" of world war II was obtained from

  1. Rauvolfia serpentina

  2. Atropa belladonna

  3. Digitalis purpurea

  4. Papaver somniferum
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Scopolamine is an anticholinergic medicine. Scopolamine has many effects in the body including decreasing the secretion of fluids, slowing the stomach and intestines, and dilation of the pupils. Scopolamine is used to relieve nausea, vomiting, and dizziness associated with motion sickness and recovery from anesthesia and surgery. Scopolamine may also be used in the treatment of parkinsonism, spastic muscle states, irritable bowel syndrome, diverticulitis and other conditions. Scopolamine is also called as hyoscine. It is alkaloid drug obtained from a number of plants of the family Solenaceae, including nightshade (Atropa belladona), henbane and jimsonweed. 

Scopolamine is an effective remedy for motion sickness, probably because of its ability to depress the central nervous system. It is also known as a truth drug. Thus, option B is correct. 

Multiple choice evs - i community health and hygiene drug, tobacco and alcohol consumption addiction and dependence important stages in agricultural development disorders of nervous system

The drug useful to increase cardiovascular effects in human beings is

  1. Cocaine

  2. Barbiturate

  3. Benzodiazepine

  4. Insulin
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Cocaine is a powerful CNS( central nervous system) stimulant, which induces a sense of well-being and pleasure and delays fatigue. It causes lack of sleep, loss of appetite, headache, convulsions, insomnia, respiratory or cardiac failure and may lead to mental disorder.

Multiple choice evs - i community health and hygiene drug, tobacco and alcohol consumption addiction and dependence important stages in agricultural development disorders of nervous system

Opium, morphine, heroin, pethidine and methadone are collectively called 

  1. Tranquillizers

  2. Stimulants

  3. Hallucinogens

  4. Opiate narcotics
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Opiates are powerful painkillers and are made of opium, a white liquid in the poppy plant. Opiates produce a quick, intense feeling of pleasure followed by a sense of well-being and calm.
These include heroin, morphine, codeine, methadone, oxycontin etc.
Thus, the correct answer is option D.

Multiple choice evs - i community health and hygiene drug, tobacco and alcohol consumption addiction and dependence important stages in agricultural development disorders of nervous system

Which of the following, stimulates the heart?

  1. Mescaline

  2. Epinephrine

  3. LSD

  4. Hashish
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Mescalin, LSD and hashish are hallucinogens and they affect the regions of the brain that are responsible for coordination, thought processes, hearing and sight.
Epinephrine is a hormone and a neurotransmitter. It binds to beta-adrenergic receptors on heart muscle cells. This causes the contraction rate of the heart to increase.
Thus, the correct answer is option B.

Multiple choice evs - i community health and hygiene drug, tobacco and alcohol consumption addiction and dependence important stages in agricultural development disorders of nervous system

Which of the following is an opiate narcotic?

  1. Barbiturates

  2. Morphine

  3. Amphetamines

  4. LSD
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Opiates e.g., morphine, heroin, pethidine (meperidine), codeine and methadone have narcotic, analgesic, sedative and anti-stringent (that cause contraction of body parts) effects.

Multiple choice biology human health and disease drug, tobacco and alcohol consumption addiction and dependence community health and hygiene

Every time when the dosage of drug has to be increased to achieve the same kick, that initially occurred in response to a smaller dose, the condition is known as

  1. Addiction

  2. Tolerance

  3. Withdrawal symptom

  4. Rebound effect
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Tolerance is the condition in which the body gets used to drugs due to drug addiction and the person's reaction to drugs get reduced. To get the same effect, body needs more dosage of drugs. This happens every time dosage is increased because after taking drugs regularly, at some point of time body gets used to the dosage and produce no reactions. There is uncontrolled craving for taking increased dosage of drugs when the person doesn't get desired effects with the present dose. 
So, the correct answer is 'Tolerance'.
Multiple choice biology human health and disease drug, tobacco and alcohol consumption addiction and dependence community health and hygiene

The secondary metabolite obtained from Catharanthus roseus is

  1. Vincristine

  2. Anthocyanin

  3. Menthol

  4. Nicotine.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Catharanthus roseus, also known as the Madagascar periwinkle, is the well-known source of the anti-cancer alkaloids vincristine and vinblastine. These are secondary metabolites extracted from the plant.

Multiple choice biology human health and disease drug, tobacco and alcohol consumption addiction and dependence community health and hygiene

Antihistamines interact with alcohol and cause marked drowsiness.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Antihistamines interact with alcohol and cause marked drowsiness. It’s best to avoid mixing alcohol and antihistamines, as they both depress the central nervous system, thereby impairing the ability to coordinate physical motor movements and remain awake and conscious. 
So, the correct option is 'True'
Multiple choice oil, fibres, spices and medicine producing plants plant kingdom and the environment around us some important plants uses of plants as medicine

An alkaloid called 'reserpine' is extracted from

  1. Leaves of Sarpaganda

  2. Roots of Ashwaganda

  3. Leaves of Ashwaganda

  4. Roots of Sarpaganda
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Reserpine is an alkaloid obtained from the roots of Sarpgandha and is extensively grown in Africa on commercial level as it has medicinal importance. It is used to treat hypertension, snake bite and cholera.

Thus, the correct answer is option D. 

Multiple choice evs - i community health and hygiene disorders of nervous system drug, tobacco and alcohol consumption addiction and dependence

Benzedrine, dexedrine and methedrine are ..............

  1. Psychedelics

  2. Depressants

  3. Stimulants

  4. Opiates
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Stimulant is any drug that excites any bodily function, but more specifically those that stimulate the brain and the central nervous system,
The major stimulant drugs are amphetamines and related compounds. Amphetamine achieve their effect by increasing the amount and activity of the neurotransmitter, norepinephrine within the brain.
The most commonly used amphetamines are amphetmiane sulfate (benzedrine), dextroamphetamine sulfate (dexedrine) and methamphetamine (methedrine).
Thus, the correct answer is option C.

Multiple choice evs - i community health and hygiene disorders of nervous system drug, tobacco and alcohol consumption addiction and dependence

Which one of the following is a stimulant?

  1. LSD

  2. Cocaine

  3. Opium

  4. Heroin

  5. Cannabis
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

LSD is hallucinogenic. Opium is highly addictive narcotic drug. Heroin is derived from the morphine alkaloid found in opium and is depressant drug. Cannabis is considered depressant. 
Cocaine  belongs to the family of stimulants, which stimulate the nervous system.
Thus, the correct answer is option (A), 'Cocaine'.

Multiple choice evs - i community health and hygiene disorders of nervous system drug, tobacco and alcohol consumption addiction and dependence

Which one of the following is a matching pair of a drug and its category?

  1. Amphetamines - Stimulant

  2. Lysergic acid dimethyl amide - Narcotic

  3. Heroin - Psychotrophic

  4. Benzodiazepam - Pain killer
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Amphetamines, sometimes called "speed" or "uppers," are central nervous system stimulant drugs, that increase alertness, self-confidence and concentration and decrease appetite, while creating a feeling of increased energy. The chemical structure is similar to the naturally occurring adrenaline and noradrenaline, that is produced by the body.