Drugs A - Z

Lorazepam Solution for injection

It is used to treat anxiety and certain types of seizures

Generic Name: lorazepam injection

Brand Names: Lorazepam Novaplus, Ativan

What is this medicine?

LORAZEPAM (lor A ze pam) is a benzodiazepine. It is used to treat anxiety and certain types of seizures. It is also used to cause sleep before surgery and to block the memory of the procedure.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:
  • alcohol or drug abuse problem
  • bipolar disorder, depression, psychosis or other mental health condition
  • glaucoma
  • kidney or liver disease
  • lung disease or breathing difficulties
  • myasthenia gravis
  • Parkinson's disease
  • seizures or a history of seizures
  • suicidal thoughts
  • an unusual or allergic reaction to lorazepam, other benzodiazepines, foods, dyes, or preservatives
  • pregnant or trying to get pregnant
  • breast-feeding

How should I use this medicine?

This medicine is for injection into a muscle or into a vein. It is given by a health care professional in a hospital or clinic setting.

Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.

What if I miss a dose?

This does not apply.

What may interact with this medicine?

  • barbiturate medicines for inducing sleep or treating seizures, like phenobarbital
  • clozapine
  • medicines for depression, mental problems or psychiatric disturbances
  • medicines for sleep
  • phenytoin
  • probenecid
  • theophylline
  • valproic acid

What should I watch for while using this medicine?

You may feel dizzy or drowsy for about 6 to 8 hours after an injection of this medicine. Elderly patients may feel these effects more strongly and for a longer time.

Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. To reduce the risk of dizzy and fainting spells, do not stand or sit up quickly, especially if you are an older patient. Alcohol may increase dizziness and drowsiness. Avoid alcoholic drinks.

This medicine can cause loss of recall of recent events. This loss of memory is only temporary.

Do not treat yourself for coughs, colds, pain or allergies without asking your doctor or health care professional for advice. Some ingredients can increase possible side effects.

What side effects may I notice from receiving this medicine?

Side effects that you should report to your doctor or health care professional as soon as possible:
  • changes in vision
  • confusion
  • depression
  • mood changes, excitability or aggressive behavior
  • movement difficulty, staggering or jerky movements
  • muscle cramps
  • restlessness
  • weakness or tiredness

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

  • constipation or diarrhea
  • difficulty sleeping, nightmares
  • dizziness, drowsiness
  • headache
  • nausea, vomiting

Where should I keep my medicine?

This medication will be given to you in a hospital or health clinic setting. You will not be given this medicine to take home.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.


Last Updated: June 22, 2009
Licensed from
The Healthline Site, its content, such as text, graphics, images, search results, HealthMaps, Trust Marks, and other material contained on the Healthline Site ("Content"), its services, and any information or material posted on the Healthline Site by third parties are provided for informational purposes only. None of the foregoing is a substitute for professional medical advice, examination, diagnosis, or treatment. Always seek the advice of a physician or other qualified healthcare provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on the Healthline Site. If you think you may have a medical emergency, call your doctor or 911 immediately. Please read the Terms of Service for more information regarding use of the Healthline Site.
Advertisement