What it's for (Indications)
- Diazepam is indicated for the management of anxiety disorders, short-term relief of anxiety symptoms, and as an adjunctive treatment for acute alcohol withdrawal symptoms (such as seizures, anxiety, and hallucinations).
- It is also used to relieve skeletal muscle spasms due to inflammation of muscles or joints.
- Furthermore, it can be used to alleviate anxiety and stress associated with endoscopic procedures and surgical interventions.
- Diazepam is also indicated as an adjunctive therapy for the management of seizure disorders.
Dosage Information
| Type | Guideline |
|---|---|
| Standard | Dosage and administration of diazepam should be individualized based on the patient's condition, age, and response. For seizure clusters, particularly when administered as rectal gel, the prescriber must ascertain that the patient exhibits a characteristic, identifiable seizure cluster distinguishable from their usual seizure activity by the caregiver. It is intended for adjunctive use, ensuring the patient is on an optimal regimen of standard anti-epileptic drug treatment. Dosage should begin with the lowest effective amount and be gradually increased if needed. Due to potential for increased adverse effects and paradoxical reactions, lower initial doses are recommended for elderly patients and those with hepatic impairment. Dosage instructions for specific formulations (e.g., rectal gel for epilepsy) should be consulted and strictly followed, noting that a non-healthcare professional often administers rectal formulations. |
Safety & Warnings
Common Side Effects
- Common adverse effects include somnolence (drowsiness), light-headedness, dizziness, headache, and ataxia (incoordination).
- Other less frequent adverse events reported include pain, abdominal pain, nervousness, vasodilatation, diarrhea, euphoria, asthma, rhinitis, and rash.
- Severe adverse reactions are rare but can occur.
Serious Warnings
- Black Box Warning: WARNING: RISKS FROM CONCOMITANT USE WITH OPIOIDS; ABUSE, MISUSE, AND ADDICTION; and DEPENDENCE AND WITHDRAWAL REACTIONS. Concomitant use of benzodiazepines, including diazepam, and opioids may result in profound sedation, respiratory depression, coma, and death. Reserve concomitant prescribing of these drugs for patients for whom alternative treatment options are inadequate. Limit dosages and durations to the minimum required. Follow patients for signs and symptoms of respiratory depression and sedation.
- Diazepam should be used with extreme caution or avoided in certain populations and conditions.
- **Pregnancy:** Contraindicated in pregnancy due to potential harm to the unborn child.
- Pregnant individuals should consult their doctor.
- **Lactation:** Not recommended during lactation as it enters breast milk and can adversely affect the nursing infant.
- Breastfeeding individuals should consult their doctor.
- **Driving & Operating Machinery:** May impair judgment, coordination, and reaction time.
- Patients should exercise extreme caution when driving or operating machinery.
- **Liver Impairment:** Administer with caution in patients with mild to moderate liver damage; initiate with the lowest possible dose and titrate slowly based on patient response.
- Contraindicated in severe liver disease.
- **Kidney Impairment:** Patients with kidney disease should consult their doctor before use.
- **Alcohol:** Concomitant use with alcohol is not recommended as it can exacerbate adverse effects such as dizziness and difficulty concentrating.
- **Hypersensitivity & Allergies:** Inform your doctor of any known hypersensitivity to diazepam or other allergies, as inactive components may cause reactions.
- **Medical History:** Inform your doctor of your medical history, especially if you have a specific muscle disorder (myasthenia gravis), kidney problems, liver problems, glaucoma, breathing/lung problems (e.
- g.
- , sleep apnea), mood/mental disorders (e.
- g.
- , psychosis, depression), or a personal/family history of substance abuse (e.
- g.
- , alcohol or drug addiction).
- **Concomitant Medications:** Inform your doctor or dentist about all medicines, including prescription, nonprescription, and herbal, before surgery.
- **Elderly Patients:** Adverse effects, particularly impaired coordination and drowsiness, may be more pronounced.
- Paradoxical effects such as mood/mental changes, sleeping issues, or hallucinations may occur.
- Increased risk of falls due to coordination problems, fatigue, and somnolence.
- **Pediatric Patients:** May not provide anxiety relief and can cause paradoxical effects such as shaking, agitation, or hallucinations in children.
- **Respiratory Depression:** Concomitant use with opioids significantly increases the risk of profound sedation, respiratory depression, coma, and death.
- Reserve concomitant prescribing for when alternative treatment options are inadequate; limit dosages and durations to the minimum required and monitor patients for signs of respiratory depression and sedation.
How it Works (Mechanism of Action)
Diazepam exerts its antiseizure effects, and likely its other therapeutic actions, primarily through an interaction with γ-aminobutyric acid (GABA) A receptors. GABA, the principal inhibitory neurotransmitter in the central nervous system (CNS), acts at this receptor to facilitate the opening of membrane channels, allowing chloride ions to flow into neurons. This influx of chloride ions creates an inhibitory potential that reduces neuronal excitability and the ability of neurons to depolarize to the threshold potential required for action potentials. Diazepam is believed to enhance the actions of GABA by increasing its binding affinity to the GABA A receptor.