Propranolol is classified as having which of the following pharmacological actions?

Correct Answer: A

Rationale: Propranolol is a medication that belongs to the class of drugs known as beta blockers. Beta blockers work by blocking the effects of the stress hormones adrenaline and noradrenaline on the beta receptors in the body. By blocking these receptors, propranolol helps to reduce heart rate, blood pressure, and the workload on the heart, making it effective in the treatment of conditions such as high blood pressure, angina, and certain heart rhythm disorders.

Correct Answer: A

Rationale: Propranolol belongs to the class of drugs known as beta blockers. Beta blockers work by blocking the effects of adrenaline on beta receptors in the body, resulting in decreased heart rate, blood pressure, and cardiac output. Propranolol is commonly used to treat conditions such as hypertension, angina, and certain cardiac arrhythmias. It is specifically a non-selective beta blocker, meaning it blocks both beta-1 and beta-2 receptors.

Correct Answer: B

Rationale: Furosemide belongs to the therapeutic class of diuretics. Diuretics are medications that promote diuresis, which is the increased production of urine. Furosemide specifically belongs to the loop diuretic class, working by inhibiting the reabsorption of sodium and chloride in the loop of Henle in the kidney, leading to increased excretion of water and electrolytes. This mechanism makes it a commonly used medication for conditions such as congestive heart failure, edema, and hypertension.

Correct Answer: A

Rationale: Sedatives are a type of drug that depresses the central nervous system and can induce a state of calmness and relaxation. In higher doses, sedatives can lead to stupor, which is a state of near-unconsciousness or insensibility. Stupor is often characterized by a marked decrease in alertness and responsiveness. Examples of sedatives include benzodiazepines, such as Valium and Xanax, as well as non-benzodiazepine sedatives like Ambien and Lunesta.

Correct Answer: B

Rationale: In this context, a liquid preparation of vegetable drugs prepared by percolation and containing alcohol is known as a fluid extract. Fluid extracts are concentrated herbal extracts that are typically made by percolating a solvent, such as alcohol, through the plant material to extract its active constituents. This process results in a liquid extract that contains the medicinal properties of the plant. Fluid extracts are commonly used in herbal medicine due to their potency and ability to preserve the therapeutic compounds of the plant.