Diazepam
Prescription status is set country by country — the label where you live is the one that applies.
Beta: the medication section is still being tested, and its data may contain errors. Do not rely on it for a decision about your own treatment.
Diazepam is a long-acting benzodiazepine that enhances GABA signalling in the brain and spinal cord, which both reduces anxiety and relaxes skeletal muscle. It is used for anxiety and for muscle spasm, and is prescription-only. Its long duration means effects persist well beyond the moment of the dose.
A usual adult range, not a national label — the dose and the timing differ by country and by product.
Approved uses differ by country — some of these may be off-label or unapproved where you live.
Food does not matter for absorption in any practical sense. Alcohol compounds the sedation and should not be combined with it, and driving deserves real caution because impairment can outlast the feeling of drowsiness. Dependence develops with continued use, so courses are kept short, and after regular use the drug is not stopped abruptly — a doctor supervises the reduction.
Excessive drowsiness, confusion, unsteadiness with falls, or slow and shallow breathing warrant medical attention. Needing more of it for the same effect, or withdrawal symptoms such as tremor, agitation or sleeplessness between doses, is also a reason to see a doctor.
Reference information, not medical advice. Discuss any change with your doctor.