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CYCLOBARBITAL
Generic Name: CYCLOBARBITAL
ABSTRACT -
Cyclobarbital is a barbiturate sedative-hypnotic structurally related to 5,5-disubstituted barbituric acid derivatives. It depresses central nervous system activity and has been used in some countries for short-term sedation or insomnia, sometimes in combination products.
DOSAGE -
Use only according to a licensed prescriber and local controlled-substance rules. Dosing, duration, and tapering must be individualized because tolerance, dependence, respiratory depression, and overdose can occur.
SIDE EEFECTS -
- Drowsiness, dizziness, impaired coordination, or slowed reaction time
- Confusion, memory impairment, mood changes, or paradoxical excitation
- Nausea, vomiting, headache, or skin rash
- Respiratory depression, low blood pressure, or coma in overdose
- Tolerance, dependence, withdrawal symptoms, or misuse risk
ALLERGIC REACTIONS -
(These symptoms may indicate an allergic reaction and require medical attention.)
- Skin rash, hives, itching, or fever
- Facial, lip, tongue, or throat swelling
- Wheezing, breathing difficulty, or chest tightness
- Severe blistering rash or anaphylaxis
DRUG INTERACTIONS-
- Alcohol, opioids, benzodiazepines, antihistamines, and other CNS depressants can cause dangerous sedation or respiratory depression
- Enzyme induction by barbiturates may reduce effectiveness of oral contraceptives, anticoagulants, corticosteroids, and other medicines
- Other sedatives or sleep medicines increase falls, confusion, and overdose risk
- Abrupt changes can affect medicines with narrow therapeutic ranges
PREAUTONS–
- Use the lowest effective dose for the shortest appropriate duration
- Avoid driving, machinery, alcohol, and unsupervised dose escalation
- Use caution in respiratory disease, liver disease, depression, older adults, and patients with substance-use risk
- Do not stop abruptly after repeated use; taper under medical supervision
- Pregnancy and breastfeeding require specialist risk-benefit assessment
WARNINGS –
- Controlled/restricted drug status varies by jurisdiction
- Overdose can be fatal, especially with alcohol or opioids
- Physical dependence and severe withdrawal, including seizures, can occur
- Keep securely stored and away from children or anyone for whom it was not prescribed
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