Heptabarb

A barbiturate derivative

Heptabarb
File:Heptabarbital structure.svg
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Heptabarbital is a barbiturate derivative that was developed in the 1940s. It is primarily used for its sedative and hypnotic properties. Like other barbiturates, heptabarbital acts as a central nervous system depressant.

Pharmacology

Heptabarbital works by enhancing the activity of the gamma-aminobutyric acid (GABA) neurotransmitter in the brain. GABA is the primary inhibitory neurotransmitter in the central nervous system, and its activation leads to increased chloride ion conductance across neuronal membranes. This hyperpolarizes the neurons, making them less likely to fire and thus exerting a calming effect on the brain.

Medical Uses

Heptabarbital has been used in the past for the treatment of insomnia and as a pre-anesthetic agent. However, due to the development of safer and more effective medications, its use has declined significantly.

Side Effects

Common side effects of heptabarbital include drowsiness, dizziness, and ataxia. In higher doses, it can cause respiratory depression, hypotension, and coma. Long-term use can lead to tolerance and dependence.

Legal Status

Heptabarbital is classified as a controlled substance in many countries due to its potential for abuse and dependence. Its use is highly regulated, and it is generally only available by prescription.

Chemistry

Heptabarbital is a derivative of barbituric acid, with a chemical structure that includes a cyclohexylideneethyl group. This structure is responsible for its pharmacological activity as a central nervous system depressant.

Related pages

• Barbiturate
• Sedative
• Hypnotic
• Central nervous system