Which class of drugs is used for treatment of stress?

Tranquillizers

The correct answer is option 4. Tranquillizers.

The class of drugs used for the treatment of stress is Tranquillizers. Tranquillizers, also known as anxiolytics or antianxiety medications, are a class of drugs used to alleviate symptoms of anxiety and stress. These drugs work by modulating neurotransmitter activity in the brain, particularly gamma-aminobutyric acid (GABA), which is an inhibitory neurotransmitter that helps to regulate anxiety and stress responses. Tranquillizers can help to reduce feelings of tension, nervousness, and worry, and promote relaxation and a sense of calmness. They are commonly prescribed for conditions such as generalized anxiety disorder (GAD), panic disorder, social anxiety disorder, and post-traumatic stress disorder (PTSD). Examples of tranquillizers include benzodiazepines (such as diazepam, lorazepam, and alprazolam) and certain antidepressants (such as selective serotonin reuptake inhibitors, or SSRIs, and serotonin-norepinephrine reuptake inhibitors, or SNRIs), which also have anxiolytic effects.  Tranquillizers should be used cautiously and under the guidance of a healthcare professional, as they can have side effects and the potential for dependence or withdrawal symptoms with long-term use.