Free CNS Drugs practice for NEET PG and INI-CET Pharmacology, with a written explanation on every question.
6 questions · Free explanations
Showing 1–6 of 6 questions
Q1 · Status Epilepticus
NEET PGEasyExplanation
Intravenous lorazepam, a benzodiazepine, is first-line for status epilepticus because of its rapid onset and longer duration than diazepam. Longer-term control follows with phenytoin, fosphenytoin or valproate.
Q2 · Absence Seizures
NEET PGMediumExplanation
Ethosuximide is first-line for absence seizures, acting on T-type calcium channels in thalamic neurons. Valproate is an alternative, especially when other seizure types coexist. Carbamazepine and phenytoin can worsen absence seizures.
Q3 · Opioid Overdose
NEET PGEasyExplanation
The triad of miosis, respiratory depression and reduced consciousness indicates opioid overdose. Naloxone, a competitive opioid antagonist, reverses it rapidly, though repeat dosing may be needed because of its short half-life.
Q4 · Lithium Toxicity
HardExplanation
Thiazides reduce renal lithium clearance by increasing proximal reabsorption, raising lithium into the toxic range. NSAIDs and ACE inhibitors do the same. Lithium has a narrow therapeutic index and needs level monitoring.
Q5 · Antipsychotic Adverse Effects
MediumExplanation
Clozapine can cause agranulocytosis and requires regular white cell and absolute neutrophil count monitoring. It is reserved for treatment-resistant schizophrenia and also carries risks of myocarditis and seizures.
Q6 · Inhalational Anaesthetics
MediumExplanation
MAC is the alveolar concentration preventing movement in 50% of patients in response to a stimulus. A low MAC means high potency. MAC correlates with lipid solubility, the Meyer-Overton hypothesis.
CNS Drugs sits within Pharmacology, which carries the same syllabus in both exams. This set runs to 6 questions, each tagged Easy, Medium or Hard, 1 of them at Hard, and 3 drawn from previous-year papers.
Answer first, then read the explanation even on the ones you got right — the reasoning is where CNS Drugs marks are actually won, and it is what separates a recalled fact from a question you can solve in a new form. Once the Easy set feels comfortable, filter to Hard to find the gaps Pharmacology examiners keep returning to.
FAQ
Yes. Every question and explanation in this CNS Drugs set is free and open — no login, no form and no payment. The explanation appears the moment you answer.
CNS Drugs sits within Pharmacology, which appears in the same form in both syllabuses. Drug classes, mechanisms and adverse effects. One of the highest yield subjects per hour of study, because the same drugs recur across cycles.
No. No account, no password, no OTP. Answer in the browser and your answers stay on your device for the session.