remimazolam (Byfavo)

Brand Names: Byfavo

Generic Name: remimazolam

What is remimazolam (Byfavo)?

Remimazolam injection is a benzodiazepine (ben-zoe-dye-AZE-eh-peen) that is used to sedate a person who is having a minor surgery, dental work, or other medical procedure.

Remimazolam injection may also be used for purposes not listed in this medication guide.

What are the possible side effects of remimazolam (Byfavo)?

Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Remimazolam can slow or stop your breathing, especially if you have recently used an opioid medication, alcohol, or other drugs that can slow your breathing. Your caregivers will watch you for symptoms such as weak or shallow breathing.

Tell your caregivers right away if you have:

  • weak or shallow breathing;
  • confusion;
  • slow heartbeats; or
  • a light-headed feeling, like you might pass out.

The sedative effects of remimazolam may last longer in older adults. Accidental falls are common in elderly patients who use benzodiazepines.

Common side effects may include:

  • feeling light-headed;
  • shallow breathing; or
  • changes in blood pressure.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is the most important information I should know about remimazolam (Byfavo)?

Tell your doctor about all your current medicines Remimazolam can slow or stop your breathing, especially if you have recently used an opioid medicine, alcohol, or other drugs that can slow your breathing.

Tell your doctor about all your medical conditions or allergies, or if you are pregnant or breastfeeding.

What should I discuss with my healthcare provider before receiving remimazolam (Byfavo)?

You should not be treated with this medicine if you are allergic to remimazolam or dextran 40.

Tell your doctor or caregivers if you recently used alcohol, sedatives, tranquilizers, or opioid medications.

Remimazolam may harm an unborn baby, and generally should not be used during pregnancy.

You should not breastfeed within 5 hours after receiving remimazolam. If you use a breast pump during this time, throw out any milk you collect. Do not feed it to your baby.

How is remimazolam given (Byfavo)?

Remimazolam is given as an infusion into a vein. You will receive this injection in a medical, dental, or surgical setting.

Remimazolam is usually given as a single dose just before a surgery or medical procedure.

Remimazolam can make you very drowsy, dizzy, or light-headed. These effects may last longer in older adults. Use caution to avoid falling or accidental injury after you have received remimazolam injection. You may need help getting out of bed for several hours.

After treatment with remimazolam injection, you will be watched to make sure the medication is working and does not cause harmful side effects. Your breathing, blood pressure, oxygen levels, and other vital signs will be watched closely.


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What happens if I miss a dose (Byfavo)?

Because you will receive remimazolam in a clinical setting, you are not likely to miss a dose.

What happens if I overdose (Byfavo)?

Since this medication is given by a healthcare professional in a medical setting, an overdose is unlikely to occur.

What should I avoid after receiving remimazolam (Byfavo)?

Do not drink alcohol shortly after receiving remimazolam.

Remimazolam injection can cause extreme drowsiness that may last for several hours after you have received the medication. Older adults may feel sleepy for even longer.

Avoid driving or doing anything that requires you to be awake and alert until the effects of this medicine have worn off completely.

What other drugs will affect remimazolam (Byfavo)?

Shortly after you are treated with remimazolam, using other drugs that make you sleepy or slow your breathing can cause dangerous side effects or death. Ask your doctor before using opioid medicine, a sleeping pill, a muscle relaxer, or medicine for anxiety or seizures.

Other drugs may affect remimazolam, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell your doctor about all your current medicines and any medicine you start or stop using.

Where can I get more information (Byfavo)?

Your doctor or pharmacist can provide more information about remimazolam injection.

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.
Every effort has been made to ensure that the information provided by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum's drug information does not endorse drugs, diagnose patients or recommend therapy. Multum's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.

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Reviewed on 10/12/2022

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