Indicate the antipsychotic drug ,which is a phenothiazine aliphatic derivative:

Correct Answer: C

Rationale: The correct answer is C: Chlorpromazine. Chlorpromazine is a phenothiazine aliphatic derivative because it belongs to the phenothiazine class of antipsychotic drugs and has an aliphatic side chain. Thiothixene (A) is a thioxanthene derivative, not a phenothiazine. Risperidone (B) is an atypical antipsychotic, not a phenothiazine. Clozapine (D) is a dibenzodiazepine derivative, not a phenothiazine. Therefore, Chlorpromazine is the only option that fits the criteria of being a phenothiazine aliphatic derivative.

Correct Answer: B

Rationale: Step-by-step rationale for why answer B (Benzodiazepines) is correct: 1. Benzodiazepines are commonly used in the treatment of anxiety disorders due to their anxiolytic effects. 2. They work by enhancing the activity of GABA neurotransmitter, leading to calming and sedative effects. 3. Barbiturates (choice A) are less commonly used now due to high risk of dependence and overdose. 4. Lithium salts (choice C) are primarily used for bipolar disorder, not anxiety. 5. Phenothiazines (choice D) are more commonly used for psychotic disorders, not anxiety. Summary: Benzodiazepines are preferred for anxiety treatment due to their effectiveness and safety profile compared to other options like barbiturates, lithium salts, and phenothiazines.

Correct Answer: C

Rationale: Step-by-step rationale: 1. Hashish is a cannabis product made from the resin of the cannabis plant. 2. Cannabis plant contains psychoactive compounds such as THC, which is also present in hashish. 3. Heroin, ecstasy, and crack are not related to cannabis and have different chemical compositions and effects. 4. Therefore, the correct answer is C (Hashish) as it is directly related to cannabis. Summary: - Choice A (Heroin) is incorrect as it is an opioid, not related to cannabis. - Choice B (Ecstasy) is incorrect as it is a synthetic drug, not related to cannabis. - Choice D (Crack) is incorrect as it is a form of cocaine, not related to cannabis. - Only choice C (Hashish) is related to cannabis due to its origin from the cannabis plant and containing similar psychoactive compounds.

Correct Answer: B

Rationale: The correct answer is B: Ipratropium. Ipratropium is a muscarinic receptor antagonist that acts as a bronchodilator, making it effective for treating asthma by relaxing the smooth muscles in the airways. Atropine (A) is a non-selective muscarinic antagonist used for bradycardia and other conditions. Platiphylline (C) is a xanthine derivative used for bronchospasm in COPD, not asthma. Metacin (D) is a cholinergic agonist used for treating glaucoma. Therefore, the most suitable choice for an anti-asthmatic agent among the options provided is Ipratropium.

Correct Answer: B

Rationale: Step-by-step rationale: 1. Pernicious anemia is caused by a deficiency in vitamin B12. 2. Cyanocobalamin is the synthetic form of vitamin B12 used to treat pernicious anemia. 3. Ferrous lactate, iron dextran, and ferrous gluconate are iron supplements, not vitamin B12. 4. Therefore, the correct answer is B (Cyanocobalamin) as it addresses the underlying cause of pernicious anemia.