Pharmacology Question:

Explain Hypnotic drugs are used to treat:

Psychosis
Sleep disorders
Narcolepsy
Parkinsonian disorders

Sleep disorders

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Explain which of the following antitubercular drug contraindicated in pragnancy. INH ethambutol rifampicin streptomycin	Indicate a beta receptor antagonist, which has very long duration of action: Metoprolol Propranolol Nadolol Pindolol