Limbitrol is currently made by Valeant Pharmaceuticals. Generic versions of the drug are made by a few different manufacturers.
Limbitrol is a combination of two different medications: chlordiazepoxide and amitriptyline.
It is part of a group of medicines known as benzodiazepines. Benzodiazepines have several different effects on the body, including:
- Stopping seizures
- Reducing anxiety
- Causing sleepiness
- Relaxing muscles
- Impairing short-term memory.
All benzodiazepines can have these effects to some degree, depending on the specific medication and the dosage. They work in the brain by enhancing the effects of
gamma-aminobutyric acid (
GABA), a chemical that is naturally calming. GABA can slow down or stop certain nerve signals in the brain, and this action helps to relieve the symptoms of anxiety.
Amitriptyline (the other component of Limbitrol) belongs to a class of medications called
tricyclic antidepressants. It is not entirely clear how amitriptyline works. It does affect several chemicals in the brain, including serotonin and norepinephrine. It is thought that perhaps amitriptyline allows these chemicals to stay in the brain longer, which can help with depression symptoms.