Question 1

Which of the following medications is most likely to affect TSH levels?

Accepted Answer

Answer reason: Levothyroxine is synthetic T4; increasing thyroid hormone provides negative feedback on the pituitary, altering/suppressing TSH levels. The other listed drugs typically do not affect TSH.

Question 2

Which medication is the odd one out among the mast cell stabilizers?

Accepted Answer

Answer reason: Theophylline is a methylxanthine bronchodilator, not a mast cell stabilizer. Cromolyn, nedocromil, and ketotifen have mast cell–stabilizing activity.

Question 3

Which benzodiazepine is commonly used for the management of anxiety disorders and has rapid onset of action?

Accepted Answer

Answer reason: Alprazolam is a short-acting benzodiazepine with rapid onset and is commonly prescribed for anxiety and panic disorders. Lorazepam has intermediate onset, clonazepam slower onset, and diazepam is less commonly used for routine anxiety management.

Question 4

Dexamethasone is classified as which type of medication?

Accepted Answer

Answer reason: Dexamethasone is a corticosteroid with anti-inflammatory and anti-allergic effects; it is not an analgesic, antibiotic, or primary antiemetic.

Question 5

Ofloxacin is classified as which type of medication?

Accepted Answer

Answer reason: Ofloxacin is a fluoroquinolone antibiotic used to treat bacterial infections; it is not an analgesic, antipyretic, or antiemetic.

Question 6

A patient with chronic pain experiences withdrawal symptoms upon abrupt discontinuation of opioid medication; this is an example of opioid what?

Accepted Answer

Answer reason: Withdrawal symptoms after stopping opioids indicate physical dependence; addiction involves compulsive use despite harm, tolerance is decreased effect requiring higher doses, and sedation is a side effect.

Question 7

Which enzyme do fluoroquinolones target in Gram-negative bacteria?

Accepted Answer

Answer reason: Fluoroquinolones inhibit bacterial topoisomerases; in Gram-negative organisms their primary target is DNA gyrase (topoisomerase II).

Question 8

Sulfonamides and Trimethoprim act synergistically to inhibit which process?

Accepted Answer

Answer reason: Sulfonamides inhibit dihydropteroate synthase and trimethoprim inhibits dihydrofolate reductase; together they block bacterial folic acid synthesis.

Question 9

What is the drug of choice for the management of vaginal trichomoniasis?

Accepted Answer

Answer reason: Trichomonas vaginalis is treated with nitroimidazoles; metronidazole is the first-line drug of choice. The other options are not effective antiprotozoals.

Question 10

Which analgesic is safe for a pregnant woman?

Accepted Answer

Answer reason: Acetaminophen (paracetamol) is the preferred first-line analgesic in pregnancy with the best established fetal safety. NSAIDs such as ibuprofen, diclofenac, and aspirin carry fetal risks (e.g., ductus arteriosus closure, bleeding), and opioids like tramadol are not preferred.

Question 11

Tetracyclines exert their antimicrobial effect by inhibiting which process?

Accepted Answer

Answer reason: Tetracyclines bind to the 30S ribosomal subunit and block aminoacyl-tRNA attachment, thereby inhibiting bacterial protein synthesis.

Question 12

Pantoprazole is used for which condition?

Accepted Answer

Answer reason: Pantoprazole is a proton pump inhibitor that suppresses gastric acid and treats GERD, ulcers, and other acid-related stomach problems; it is not an analgesic, antibiotic, or anti-inflammatory.

Question 13

Central inhibition of sympathetic outflow can be achieved through the activation of which receptors?

Accepted Answer

Answer reason: Activation of central α2-adrenergic receptors (e.g., clonidine) reduces sympathetic outflow by inhibiting norepinephrine release from presynaptic neurons. α1 and β receptors do not centrally inhibit sympathetic outflow.

Question 14

Which adrenergic receptor subtype is targeted by bronchodilator drugs like Salbutamol (Albuterol) in an acute asthma exacerbation?

Accepted Answer

Answer reason: Albuterol (salbutamol) is a selective β2-adrenergic agonist that relaxes bronchial smooth muscle, producing bronchodilation during acute asthma attacks. α1, α2, and β1 are not responsible for bronchodilation.

Question 15

What are NSAIDs used for?

Accepted Answer

Answer reason: NSAIDs provide analgesic, anti-inflammatory, and antipyretic effects by inhibiting cyclooxygenase enzymes; therefore they are used for pain, inflammation, and to reduce fever.

Question 16

Vancomycin exerts its antimicrobial effect by inhibiting the synthesis of which cellular component?

Accepted Answer

Answer reason: Vancomycin binds to D-Ala-D-Ala termini of peptidoglycan precursors, blocking bacterial cell wall synthesis; it does not target DNA, RNA, or protein synthesis.

Question 17

What is Senexon tablet used for?

Accepted Answer

Answer reason: Senexon contains sennosides, a stimulant laxative used to treat constipation.

Question 18

What is loperamide used for?

Accepted Answer

Answer reason: Loperamide is an antidiarrheal opioid-receptor agonist that slows intestinal motility, used to treat acute diarrhea; it is not for allergy, constipation, or infection.

Question 19

Which tablet is used for pain?

Accepted Answer

Answer reason: Diclofenac is an NSAID analgesic used to treat pain; the others are for infection (ciprofloxacin), diarrhea (loperamide), and allergies (cetirizine).

Question 20

Which of the following antibiotics does NOT have ototoxic effects?

Accepted Answer

Answer reason: Aminoglycosides (streptomycin, gentamicin, neomycin) are classically ototoxic; erythromycin is not typically ototoxic.

Question 21

What is the mainstay of treatment for methanol poisoning?

Accepted Answer

Answer reason: Ethanol competitively inhibits alcohol dehydrogenase, preventing conversion of methanol to toxic formic acid. Naloxone is for opioids, activated charcoal is ineffective for alcohols, and sodium bicarbonate only treats acidosis.

Question 22

Which tablet is used for pain?

Accepted Answer

Answer reason: Ibuprofen is an NSAID analgesic used to relieve pain; ciprofloxacin is an antibiotic, cetirizine an antihistamine, and loperamide an antidiarrheal.

Question 23

Which of the following is a short-acting beta-agonist?

Accepted Answer

Answer reason: Levalbuterol is a short-acting beta2-agonist bronchodilator. Salmeterol is long-acting. (Note: Salbutamol and Terbutaline are also short-acting, but the best single choice here is Levalbuterol.

Question 24

Which medication is the odd one out among Haloperidol, Clozapine, Risperidone, and Lorazepam?

Accepted Answer

Answer reason: Haloperidol, clozapine, and risperidone are antipsychotics; lorazepam is a benzodiazepine anxiolytic/sedative, making it the odd one out.

Question 25

Which of the following medicines is NOT used for pain?

Accepted Answer

Answer reason: Aspirin, ibuprofen, and diclofenac are NSAIDs used for analgesia. Metformin is a biguanide used to treat type 2 diabetes and is not an analgesic.

Question 26

What is the primary classification of erythromycin?

Accepted Answer

Answer reason: Erythromycin is a macrolide antibiotic used to treat bacterial infections; it is not an antipyretic, analgesic, or antiemetic.

Question 27

What is hydralazine primarily used for?

Accepted Answer

Answer reason: Hydralazine is a direct arteriolar vasodilator used to treat hypertension; it is not a vasoconstrictor and is not indicated for stroke or anxiety.

Question 28

Which is commonly used as an anticonvulsant during status epilepticus?

Accepted Answer

Answer reason: Phenobarbital is a barbiturate anticonvulsant used for status epilepticus when benzodiazepines and phenytoin are insufficient. The other options are not anticonvulsants (sertraline is an SSRI, omeprazole a PPI, insulin a hypoglycemic).

Question 29

Nitroglycerin tablets are used for which condition?

Accepted Answer

Answer reason: Nitroglycerin is a nitrate that dilates veins and coronary arteries to relieve chest pain from angina. It is not used for asthma, typhoid, or syphilis.

Question 30

Which of the following medicines is used for the treatment of heart failure?

Accepted Answer

Answer reason: Digoxin is a cardiac glycoside that increases myocardial contractility and is used in heart failure. Metformin treats diabetes, Artemeter is an antimalarial, and Donepezil treats Alzheimer disease.

Question 31

What is amoxicillin used for?

Accepted Answer

Answer reason: Amoxicillin is a penicillin-class antibiotic indicated for treating bacterial infections, not for allergy, constipation, or pain.

Question 32

Which medication is the odd one out among the first-generation antihistamines?

Accepted Answer

Answer reason: Loratadine is a second-generation (non-sedating) H1 antihistamine, whereas diphenhydramine, chlorpheniramine, and promethazine are first-generation agents.

Question 33

Domperidone is used for which condition?

Accepted Answer

Answer reason: Domperidone is a dopamine D2 receptor antagonist with prokinetic and antiemetic effects, used to treat nausea and vomiting.

Question 34

Which anesthetic is associated with an increased risk of malignant hyperthermia?

Accepted Answer

Answer reason: Malignant hyperthermia is triggered by the depolarizing neuromuscular blocker succinylcholine; nitrous oxide and propofol do not trigger MH.

Question 35

Allopurinol tablets are used to prevent the level of which substance?

Accepted Answer

Answer reason: Allopurinol inhibits xanthine oxidase, reducing uric acid production to prevent hyperuricemia and gout.

Question 36

Which drug is used for deworming in children?

Accepted Answer

Answer reason: Albendazole is a broad-spectrum anthelmintic used to treat intestinal helminth infections in children; the other options are not antiparasitic drugs.

Question 37

Which one is the odd medicine among the listed options?

Accepted Answer

Answer reason: Amoxicillin is an antibiotic, whereas mefenamic acid, paracetamol, and ibuprofen are analgesic/antipyretic NSAIDs.

Question 38

Which drug class is commonly used to treat asthma by relaxing and opening the airways?

Accepted Answer

Answer reason: Bronchodilators relax bronchial smooth muscle (e.g., beta-2 agonists, anticholinergics) to open airways and relieve asthma symptoms; the other classes do not treat bronchospasm.

Question 39

Which adverse effect is commonly associated with opioid analgesics?

Accepted Answer

Answer reason: Opioids activate mu receptors in the gut, decreasing peristalsis and increasing sphincter tone, leading to constipation. They more often cause hypotension and sedation rather than hypertension or insomnia; bronchospasm is not a common adverse effect.

Question 40

What is Clotrimazole cream primarily used to treat?

Accepted Answer

Answer reason: Clotrimazole is an imidazole antifungal used topically for dermatophyte and Candida infections; it is neither antibacterial, analgesic, nor antiviral.

Question 41

What is the primary use of omeprazole tablets?

Accepted Answer

Answer reason: Omeprazole is a proton pump inhibitor that reduces gastric acid secretion to treat GERD, peptic ulcer disease, and other acid-related gastric problems; it is not used for headaches or kidney issues.

Question 42

For what type of pain is diclofenac sodium injection used?

Accepted Answer

Answer reason: Diclofenac, an NSAID, is primarily indicated for relief of mild to moderate pain; severe pain typically requires stronger analgesics.

Question 43

Clotrimazole is classified as which type of medication?

Accepted Answer

Answer reason: Clotrimazole is an azole antifungal that inhibits ergosterol synthesis in fungal cell membranes; it is used to treat candidiasis and dermatophyte infections.

Question 44

Which inhalation anesthetic is considered the prototype for the halogenated hydrocarbon class?

Accepted Answer

Answer reason: Halothane is the classic prototype inhalational anesthetic of the halogenated hydrocarbon class; the others are newer fluorinated ethers.

Question 45

Ofloxacin is used for which condition?

Accepted Answer

Answer reason: Ofloxacin is a fluoroquinolone antibiotic indicated for treating bacterial infections.

Question 46

At which site does the mechanism of action of warfarin occur?

Accepted Answer

Answer reason: Warfarin inhibits vitamin K epoxide reductase in the liver, reducing synthesis of vitamin K–dependent clotting factors; therefore its primary site of action is the liver.

Question 47

A drug that is capable of altering mental functioning is known as?

Accepted Answer

Answer reason: Psychoactive drugs act on the central nervous system to alter mood, cognition, perception, or behavior; the other options refer to mental illness (psychotic), a treatment for psychosis (antipsychotic), or a vague term (psychiatric).

Question 48

A 27 year old nursing mother is suffering from herpes simplex genitalis previously she responded to the drug used topically apart from her current problem she is in good health so which of the following drugs is most likely to be prescribed at this time?

Accepted Answer

Answer reason: Acyclovir is first-line therapy for genital herpes and is considered compatible with breastfeeding. Ritonavir is an HIV drug, trifluridine is an ophthalmic agent for HSV keratitis, and foscarnet is reserved for resistant or severe infections.

Question 49

A 22 year old male has been treating his athlete's foot with an over the counter drug without much success upon examination it is pound that nail bed of both great toes is infected. Which one of the following antifungal agent would be most appropriate?

Accepted Answer

Answer reason: Infection of the toenail bed (onychomycosis) due to dermatophytes is best treated with oral terbinafine. Nystatin targets Candida, fluconazole is less effective for dermatophyte nails, and caspofungin is for systemic infections, not nail disease.

Question 50

In a patient with diffused lymphoma the oncologist suggest treatment strategy that involved the initial administration of doxorubicin to obtained a significant log kill followed by cell cycle specific drugs vincristine etc this therapeutic strategy is called ____________ therapy?

Accepted Answer

Answer reason: Giving a cell cycle–nonspecific drug (e.g., doxorubicin) first reduces tumor burden and stimulates surviving cells to enter the cell cycle, after which cell cycle–specific agents (e.g., vincristine) are given to kill the recruited cells. This schedule is called recruitment therapy.

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Which of the following medications is most likely to affect TSH levels?

Which medication is the odd one out among the mast cell stabilizers?

Which benzodiazepine is commonly used for the management of anxiety disorders and has rapid onset of action?

Dexamethasone is classified as which type of medication?

Ofloxacin is classified as which type of medication?

A patient with chronic pain experiences withdrawal symptoms upon abrupt discontinuation of opioid medication; this is an example of opioid what?

Which enzyme do fluoroquinolones target in Gram-negative bacteria?

Sulfonamides and Trimethoprim act synergistically to inhibit which process?

What is the drug of choice for the management of vaginal trichomoniasis?

Which analgesic is safe for a pregnant woman?

Tetracyclines exert their antimicrobial effect by inhibiting which process?

Pantoprazole is used for which condition?

Central inhibition of sympathetic outflow can be achieved through the activation of which receptors?

Which adrenergic receptor subtype is targeted by bronchodilator drugs like Salbutamol (Albuterol) in an acute asthma exacerbation?

What are NSAIDs used for?

Vancomycin exerts its antimicrobial effect by inhibiting the synthesis of which cellular component?

What is Senexon tablet used for?

What is loperamide used for?

Which tablet is used for pain?

Which of the following antibiotics does NOT have ototoxic effects?

What is the mainstay of treatment for methanol poisoning?

Which tablet is used for pain?

Which of the following is a short-acting beta-agonist?

Which medication is the odd one out among Haloperidol, Clozapine, Risperidone, and Lorazepam?

Which of the following medicines is NOT used for pain?

What is the primary classification of erythromycin?

What is hydralazine primarily used for?

Which is commonly used as an anticonvulsant during status epilepticus?

Nitroglycerin tablets are used for which condition?

Which of the following medicines is used for the treatment of heart failure?

What is amoxicillin used for?

Which medication is the odd one out among the first-generation antihistamines?

Domperidone is used for which condition?

Which anesthetic is associated with an increased risk of malignant hyperthermia?

Allopurinol tablets are used to prevent the level of which substance?

Which drug is used for deworming in children?

Which one is the odd medicine among the listed options?

Which drug class is commonly used to treat asthma by relaxing and opening the airways?

Which adverse effect is commonly associated with opioid analgesics?

What is Clotrimazole cream primarily used to treat?

What is the primary use of omeprazole tablets?

For what type of pain is diclofenac sodium injection used?

Clotrimazole is classified as which type of medication?

Which inhalation anesthetic is considered the prototype for the halogenated hydrocarbon class?

Ofloxacin is used for which condition?

At which site does the mechanism of action of warfarin occur?

A drug that is capable of altering mental functioning is known as?

A 27 year old nursing mother is suffering from herpes simplex genitalis previously she responded to the drug used topically apart from her current problem she is in good health so which of the following drugs is most likely to be prescribed at this time?

A 22 year old male has been treating his athlete's foot with an over the counter drug without much success upon examination it is pound that nail bed of both great toes is infected. Which one of the following antifungal agent would be most appropriate?

In a patient with diffused lymphoma the oncologist suggest treatment strategy that involved the initial administration of doxorubicin to obtained a significant log kill followed by cell cycle specific drugs vincristine etc this therapeutic strategy is called ____________ therapy?

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