How long does lorazepam last depends on the person taking it, the dose they take, and the way they are using it. Lorazepam is a drug that calms and sedates, and it is used to treat anxiety disorders and seizure disorders. It works by binding to a receptor in the brain that enhances GABA activity. GABA is a neurotransmitter that helps regulate emotions and nerve impulses.
The drug takes effect within half an hour after being taken and peaks in about 2 hours, with the effects of a standard dose lasting six to eight hours. This drug is in a class of medications called benzodiazepines, which are often abused by people who want to feel high or get drunk, or by doctors who are tempted to use the medication for sleep and other purposes. Benzodiazepines are considered to have a moderate risk for abuse and addiction.
People who use lorazepam improperly may develop a physical dependence on the medication, which can cause withdrawal symptoms if you suddenly stop taking it. This is particularly true for older adults or people who have liver or kidney disease. You should always talk to your doctor before stopping this medication, even if you are feeling better. They will be able to recommend other treatments, which may help you control your symptoms without the side effects of lorazepam. You should also let your doctor know if you have ever had a history of drug misuse or alcohol misuse.