Basic Clinical Pharmacology Questions With 100% Correct Solutions

Select one: a. Epinephrine b. Norepinephrine c. Dopamine d. Acetylcholine e. Serotonin - ANSWER- Acetylcholine Which antipsychotic requires regular monitoring for agranulocytosis? Select one: a. Olanzapine (Zyprexa) b. Risperidone (Risperdal) c. Clozapine (Clozaril) d. Aripiprazole (Abilify) e. Quetiapine (Seroquel) - ANSWER- Clozapine (Clozaril) Which skeletal muscle relaxant is structurally similar to amitriptyline and therefore has pronounced anticholingeric effects? Select one: a. Carisoprodol (Soma) b. Cyclobenzaprine (Flexeril) c. Methocarbamol (Robaxin) d. Orphenadrine (Norflex) e. Tizanidine (Zanaflex) - ANSWER- Cyclobenzaprine (Flexeril) Beta-blockers may be clinically useful in the treatment of: Select one: a. Hypertension b. Cardiac dysrhythmias c. Chronic heart failure d. Both A and C e. A, B, and C - ANSWER- A, B, and C Beta-blockers have many cardiovascular clinical indications, including the treatment of hypertension, cardiac dysrhythmias, and chronic heart failure. In each case the slowing of the pumping of the heart is key in bringing about the therapeutic benefit. How is ramelteon (Rozerem) different from Z-drugs? When might it be advantageous? - ANSWER- Ramelteon is a melatonin receptor agonist and has no direct effects on GABA. It affects sleep latency (reducing the amount of time it takes to fall asleep). It is not a controlled substance and abuse potential is low. It might be especially good for people suffering from jet-lag. List 2 non-cardiac indications for beta-blockers. - ANSWER- Migraine headaches and anxiety. Beta-blockers may also be used in the management of essential tremor and as migraine prophylactic agents. They may also be used for stage fright or in hyperthyroidism. Briefly describe the concept of "therapeutic index." What does it mean and how does it relate to the safety and efficacy of the drug in question? - ANSWER- Therapeutic index refers to the difference in dose required to achieve a clinical effect and a toxic effect. If only small doses are required for a clinical effect and very large doses are needed before a drug becomes toxic, then that drug is said to have a wide therapeutic index -- a little is helpful and it takes a lot to be harmful. A narrow therapeutic index drug would be like cancer chemotherapy where the dose that is efficacious is near the same dose that is toxic. Which of the following drugs used for asthma and allergic rhinitis has a black box warning from the FDA regarding serious mental health-related side effects? Select one: a. Albuterol (Ventolin) b. Theophylline (Theo-Dur) c. Fluticasone (Flovent) d. Montelukast (Singulair) e. Chlorpheniramine (Chlor-Trimeton) - ANSWER- Montelukast (Singulair)