A hospital antibiotic drip for resistant Gram-negative infections
Meropenem with vaborbactam
A hospital antibiotic given into a vein, combining a carbapenem with a protective partner medicine to treat serious resistant infections.
What is Meropenem with vaborbactam?
Meropenem with vaborbactam is a specialist hospital antibiotic given as a drip into a vein to treat serious infections caused by resistant Gram-negative bacteria, the kind that many ordinary antibiotics can no longer kill. Meropenem is the antibiotic, from the carbapenem family, and vaborbactam protects it from enzymes that some bacteria use to break carbapenems down. Because meropenem is related to penicillins, there can be cross-reactivity in people with a serious penicillin allergy. Other important points are a small risk of seizures and the possibility of C. difficile diarrhoea, both of which the hospital team watches for.
Education and reference only. This is a plain-language guide to Meropenem with vaborbactam — it deliberately contains no doses. Doses depend on the person, the brand and the reason for treatment, and belong with your prescriber. Always check the BNF, the product labelling (SmPC) and follow medical advice.
What it is
Meropenem with vaborbactam is a combination antibiotic used in hospital to treat serious infections, particularly those caused by resistant Gram-negative bacteria. Meropenem belongs to the carbapenem family of antibiotics, which are powerful, broad-acting medicines usually kept for difficult infections. Vaborbactam does not kill bacteria itself; instead, it blocks enzymes (called beta-lactamases) that some bacteria produce to destroy carbapenems, so meropenem can keep working. It is given into a vein as a drip, under the care of a hospital team, often guided by tests showing which bacteria are causing the infection.
How it works
Meropenem kills bacteria by stopping them from building their cell walls, so they break apart and die. Some resistant bacteria fight back by making enzymes that break carbapenems down before they can work. Vaborbactam blocks several of these enzymes, shielding meropenem so it can still attack the bacteria. Together they can treat infections that meropenem alone might not clear. Because it is a powerful antibiotic for serious infections, it is given into a vein in hospital and its use is guided by laboratory tests so it is used appropriately and resistance is kept in check.
Company & origin
Originated / developed by: Specialist manufacturer.
A specialist hospital antibiotic used in the UK, given into a vein to treat serious infections caused by resistant Gram-negative bacteria.
Practical use
How to take Meropenem with vaborbactam
General, dose-free guidance — always follow your prescriber's and the leaflet's specific instructions.
- It is given by trained staff as a drip into a vein in hospital, not taken at home.
- Tell the team about any allergy to penicillins or other antibiotics before it is given.
- Complete the full course the team prescribes, as stopping early can let the infection return or worsen.
- Report any new or worsening diarrhoea promptly, as this can be a sign of C. difficile infection.
- Tell the team about any history of fits (seizures) or kidney problems, as the dose may need adjusting.
Weighing it up
Advantages & disadvantages of Meropenem with vaborbactam
Advantages
- Treats serious infections caused by resistant Gram-negative bacteria that many antibiotics cannot.
- The added vaborbactam protects meropenem from enzymes that would otherwise destroy it.
- A valuable option in hospital when other antibiotics have failed or are not suitable.
Disadvantages
- Can cause allergic reactions, especially in people with a serious penicillin allergy.
- Carries a small risk of seizures, particularly with kidney problems or existing nerve conditions.
- Like other antibiotics, can cause C. difficile diarrhoea and is given only as a hospital drip.
Practical use
Good to know
An important safety point is that meropenem is chemically related to penicillins, so people who have had a serious allergic reaction to penicillins or other beta-lactam antibiotics can sometimes react to it too; the team checks allergy history carefully before giving it. Carbapenems carry a small risk of seizures, which is greater in people with kidney problems or existing brain or nerve conditions, so the dose and monitoring are adjusted accordingly. As with many antibiotics, it can upset the balance of bacteria in the gut and lead to C. difficile infection, which causes diarrhoea that can be severe, so any new or worsening diarrhoea should be reported. Because it is a valuable antibiotic for resistant infections, hospitals reserve it for cases that need it and guide treatment with laboratory testing.
Who should not take it / use with caution
- People who have had a serious allergic reaction to meropenem, vaborbactam or other carbapenems should not have it.
- It is used with great care, or avoided, in people with a serious allergy to penicillins or other beta-lactam antibiotics.
- It is used with care, with dose adjustment and monitoring, in people with kidney problems or a history of seizures.
Monitoring
- Checking how the infection responds, often with laboratory tests on the bacteria involved.
- Monitoring kidney function and blood counts during treatment.
- Watching for allergic reactions, seizures and any new or worsening diarrhoea.
Side effects
- Diarrhoea, nausea or other stomach upset, and reactions where the drip goes in.
- Headache, and sometimes changes in blood tests such as liver or blood-count results.
- Less commonly, allergic reactions, seizures, or C. difficile diarrhoea, which need urgent attention.
Key interactions
- It can lower the level of some epilepsy medicines (such as sodium valproate), which can make seizures more likely.
- Certain medicines that affect the kidneys can change how the antibiotic is cleared, so the team takes this into account.
- Tell the team about all your medicines so interactions can be checked.
Available as: A powder made up into a solution for a drip into a vein.
Answers
Meropenem with vaborbactam: frequently asked questions
What is meropenem with vaborbactam used for?
It is a hospital antibiotic given into a vein to treat serious infections caused by resistant Gram-negative bacteria that many other antibiotics can no longer kill.
What does the vaborbactam part do?
Vaborbactam does not kill bacteria itself; it blocks enzymes that some bacteria use to destroy carbapenems, protecting meropenem so it can keep working.
Is it safe if I am allergic to penicillin?
Meropenem is related to penicillins, so people with a serious penicillin allergy can sometimes react to it; tell the team about any allergy before it is given.
Why does my team ask about seizures?
Carbapenems carry a small risk of seizures, which is higher with kidney problems or existing nerve conditions, so the dose and monitoring are adjusted accordingly.
Why should I report diarrhoea?
Like many antibiotics, it can disturb gut bacteria and lead to C. difficile infection, which causes diarrhoea that can be serious, so report any new or worsening diarrhoea.
The wider class
About Carbapenem antibiotic with beta-lactamase inhibitor
Meropenem with vaborbactam belongs to the carbapenem antibiotic with beta-lactamase inhibitor class. For how the class as a whole works, its shared safety principles and monitoring, see the full guide.
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Authoritative sources
- BNF
- NICE CKS
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