Problem 56 - A Complete Resource Book in Chemistry for JEE Main

Question

Which of the following is used as a tranquilizer? (a) seconal (b) luminal (c) barbituric acid derivatives (d) all of these

Step-by-Step Solution

Answer

All of these (d) are used as tranquilizers.

Step 1: Understanding the Question

The question asks which among the given options is used as a tranquilizer. A tranquilizer is a drug that is administered to reduce tension or anxiety.

Step 2: Analyzing Options

Let's analyze the options one by one. Option (a) Seconal is a brand name for the drug secobarbital, which is a barbiturate used as a sedative and hypnotic. Option (b) Luminal is another name for phenobarbital, also a barbiturate used for calming purposes. Option (c) refers to barbituric acid derivatives in general, which are known to have sedative and tranquilizing effects.

Step 3: Identifying the Correct Answer

All of the given options are related to tranquilizing effects. Seconal (secobarbital) and Luminal (phenobarbital) are both barbiturates, which are derivatives of barbituric acid used as tranquilizers to reduce anxiety.

Key Concepts

Tranquilizers

Tranquilizers are substances that help in calming down the nervous system. They are often used to manage anxiety and stress. When a person feels overwhelmed or anxious, tranquilizers can help soothe the nerves and bring about a sense of calmness. They work by slowing down brain activity, which leads to a reduction in nervousness and tension.

There are two main types of tranquilizers:

• Major tranquilizers: These are known as antipsychotics and are used for managing more severe mental health conditions such as schizophrenia.
• Minor tranquilizers: These include benzodiazepines and barbiturates, often used for treating less severe anxiety conditions and insomnia.

Tranquilizers are powerful and should only be taken under a doctor's supervision. Misuse can lead to dependence and other health complications.

Barbituric Acid Derivatives

Barbituric acid derivatives are chemical compounds that originate from barbituric acid. These derivatives act as central nervous system depressants and are primarily used as sedatives or anesthetics. They modify the effects of neurotransmitters in the brain, which leads to a calming effect on the body and mind.

Some well-known barbituric acid derivatives include:

• Phenobarbital: Often used for its calming effects and remains one of the most commonly used barbiturates today.
• Secobarbital: Known under the brand name Seconal, it is mainly used as a sedative.
• Amobarbital: Used in some situations to reduce anxiety before surgical procedures.

Despite their effectiveness, these substances have largely been replaced by safer alternatives in modern medicine due to the high risk of addiction and overdose.

Sedatives

Sedatives, also referred to as downers, are substances that induce a state of calm or sleep. They work by depressing the central nervous system, therefore reducing irritability, excitement, or anxiety. People often use sedatives to help with sleep disorders or manage anxiety issues.

There are different types of sedatives:

• Barbiturates: Like the ones derived from barbituric acid, help calm patients but pose considerable risks if misused.
• Benzodiazepines: A safer group of sedatives, often prescribed for anxiety disorders, insomnia, and seizures.
• Non-benzodiazepine sleep medications: These target specific brain areas related to sleep, often preferred due to their lower side effect profile.

The choice of sedative depends on the medical context and the patient's specific needs. Despite their benefits, sedatives must be used cautiously to avoid dependency and side effects.