Tag: medicinal chemistry

Questions Related to medicinal chemistry

Ranitidine is also called as:

chemistry medicinal chemistry antacids and antihistamines therapeutic action of different classes of drugs ph regulation of the stomach

  1. Zinetac

  2. Cimetidine

  3. Pepsin

  4. Histamine

Show answer
Correct Option: A
Explanation:

Ranitidine is also called as zinetac. It is an antihistamine.
It prevent the interaction between histamine and the receptors in the stomach wall, releasing less amount of acid.

Which of the following is an antihistamine?

chemistry medicinal chemistry antacids and antihistamines therapeutic action of different classes of drugs ph regulation of the stomach

  1. Brompheniramine

  2. Rantidine

  3. Cimetidine

  4. None of the above

Show answer
Correct Option: A
Explanation:

Antihistamine is a drug or other compound that inhibits the physiological effects of histamine, used especially in the treatment of allergies.
Brompheniramine is an antihistamine drug.
Rantidine and Cimetidine are antacids.

Equanil is a/an:

chemistry medicinal chemistry antacids and antihistamines therapeutic action of different classes of drugs ph regulation of the stomach

  1. tranqulizer

  2. antifertility drug

  3. artificial sweetner

  4. antihistaamine

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Correct Option: A
Explanation:

Equanil is a tranquilizer.
This medication is used short-term to treat symptoms of anxiety and nervousness. It acts on certain centers of the brain to help calm your nervous system which is same as tranquilizer which also have  a calming effect and eliminate both the physical and psychological effects on anxiety or fear.

The compound that causes general depressant action on the central nervous system belongs to the class of:

chemistry medicinal chemistry antacids and antihistamines therapeutic action of different classes of drugs ph regulation of the stomach

  1. tranquilizers

  2. analgesics

  3. antihistamines

  4. narcotic analgesics

Show answer
Correct Option: A
Explanation:

Tranquilizer, a drug that is used to reduce anxiety, fear, tension, agitation, and related state of mental disturbance. 

Tranquilizers act on central nervous system and thus causes depression of central nervous system.

Substances which are used to bring down the temperature in high fever condition, are called:

chemistry medicinal chemistry antacids and antihistamines therapeutic action of different classes of drugs ph regulation of the stomach

  1. antiseptics

  2. pyretics

  3. antibiotics

  4. antipyretics

Show answer
Correct Option: D
Explanation:

An Antipyretics is a type of medication that prevents or reduces fever by lowering body temperature from a raised state. 

Antiseptics and disinfectants either kill or prevent growth of microorganisms. Which of the following statements is not true?

chemistry medicinal chemistry antacids and antihistamines therapeutic action of different classes of drugs ph regulation of the stomach

  1. Chlorine and Iodine are used as strong disinfectants

  2. Dilute solutions of Boric acid and Hydrogen Peroxide are strong antiseptics

  3. Disinfectants harm the living tissues

  4. A 0.2% solution of phenol is an antiseptic while 1% solution acts as a disinfectant

Show answer
Correct Option: B
Explanation:

Antiseptic and disinfectants both either kill or prevent the growth of microorganisms. The main point of difference between these two is that the former (antiseptic) are used for living beings whereas disinfectants are not safe for living tissues.

A substance like phenol in its lower concentration (0.2%) behaves as antiseptic whereas in higher concentration (1%) as a disinfectant. 
Chlorine and iodine are strong disinfectants whereas dilute solutions of boric acid and hydrogen peroxide are mild antiseptic.

Which one of the following drugs prevents the interaction of histamine with its receptor?

chemistry medicinal chemistry antacids and antihistamines therapeutic action of different classes of drugs ph regulation of the stomach

  1. Antihistamines

  2. Analgesics

  3. Antibiotics

  4. Disinfectants

Show answer
Correct Option: A
Explanation:

Antihistamines are drugs which treat allergic rhinitis and other allergies. Antihistamines can give relief when a person has nasal congestion, sneezing, or hives because of pollen, dust mites, or animal allergy. Typically people take antihistamines as an inexpensive, generic, over-the-counter drug with few side effects. As an alternative to taking an antihistamine, people who suffer from allergies can instead avoid the substance which irritates them. However, this is not always possible as some substances, such pollen, are carried in the air, thus making allergic reaction caused by them generally unavoidable.

Penicillin is effective against gram-positive as well as gram-negative bacteria. 

chemistry medicinal chemistry antacids and antihistamines therapeutic action of different classes of drugs ph regulation of the stomach

  1. True

  2. False

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Correct Option: B
Explanation:

Penicillin is effective only against Gram-positive bacteria because Gram-negative bacteria have a lipopolysaccharide and protein layer that surrounds the peptidoglycan layer of the cell wall, preventing penicillin from attacking.

Which of the following is not an antihistamine?

chemistry medicinal chemistry antacids and antihistamines therapeutic action of different classes of drugs ph regulation of the stomach

  1. Brompheniramine

  2. Terfenadine

  3. Iproniazid

  4. Ranitidine

Show answer
Correct Option: C
Explanation:

Iproniazid (Marslid, Rivivol, Euphozid, Iprazid, Ipronid, Ipronin) is a non-selective, irreversible monoamine oxidase inhibitor (MAOI) of the hydrazine class. It is a xenobiotic that was originally designed to treat tuberculosis, but was later most prominently used as an antidepressany drug.

Azoic dyeing is a technique in which an insoluble ..................... compound dye is produced directly onto the fiber.

chemistry medicinal chemistry antacids and antihistamines therapeutic action of different classes of drugs ph regulation of the stomach

  1. azo

  2. sulphur containing

  3. carbonyl

  4. carboxylic acid

Show answer
Correct Option: A
Explanation:

Azoic dyeing is a technique in which an insoluble Azo dye is produced directly onto or within the fiber. This is achieved by treating a fiber with both diazo and coupling components.
With suitable adjustment of dyebath conditions, the two components react
to produce the required insoluble azo dye. This technique of dyeing is unique, in that the final color is controlled by the choice of the diazoic and coupling components.
Hence option A is correct.