Which class of drugs is associated with side effects such as drowsiness, dizziness, and anterograde amnesia?

• A. Barbiturates
• B. SSRIs
• C. Opioids
• D. Benzodiazepines

Answer: (D)

Benzodiazepines are a class of drugs commonly prescribed for anxiety, insomnia, muscle relaxation, and seizure disorders. They work by enhancing the effect of the neurotransmitter gamma-aminobutyric acid (GABA) at the GABA-A receptor, leading to increased inhibitory transmission in the brain. This mechanism of action is responsible for their sedative, anxiolytic, muscle-relaxant, and anticonvulsant properties.

The side effects of benzodiazepines, such as drowsiness, dizziness, and anterograde amnesia, are significant and commonly observed in patients. Drowsiness and dizziness result from the central nervous system depressant effects, making it important for patients to be cautious about activities that require mental alertness, such as driving. Anterograde amnesia refers to the inability to form new memories while under the influence of the drug, which can pose risks, particularly in situations where patients need to recall events or instructions shortly after taking the medication.

In contrast, barbiturates, while also having sedative effects and the potential for similar side effects, are less commonly used today due to their high potential for addiction, overdose, and toxicity. SSRIs (selective serotonin reuptake inhibitors