Beta-lactamase inhibitor
Clavulanate drug interactions: a practical overview
Drug interactions are the single biggest cause of preventable medication problems. Clavulanate (Clavulanate) interacts to varying degrees with several classes of medication and with a smaller list of foods. This page summarises the practically important ones at 500/125mg, 875/125mg, 1000/62.5mg, framed for a real-world prescription review rather than an exhaustive PDF list.
High-priority interactions for Clavulanate
For Clavulanate, the most clinically relevant interactions are typically with strong CYP3A4 inhibitors and inducers, with cardiovascular medications (notably nitrates for several Beta-lactamase inhibitor agents), with central nervous system depressants, and with medications affecting blood pressure or heart rate. Clavulanate binds irreversibly to the active site of many class A beta-lactamases produced by bacteria, acting as a 'suicide inhibitor'.
Working with the pharmacist
A pharmacist review of all current medications is the practical safeguard against unintended interactions with Clavulanate. According to the prescribing information for Clavulanate, the full medication list — prescription, OTC, supplements and recreational substances — should be reviewed before starting and at every dose change at 500/125mg, 875/125mg, 1000/62.5mg.
Frequently asked questions
What's the most important Clavulanate interaction to know? ▾
For most Beta-lactamase inhibitor medications, the highest-priority interaction is with nitrate medications used for chest pain — this combination is often a hard contraindication. After that, strong CYP3A4 inhibitors (some antifungals, macrolides) are the next concern at routine 500/125mg, 875/125mg, 1000/62.5mg doses.
Do I need to tell the pharmacist about supplements? ▾
Yes. Supplements and herbal products can interact with Clavulanate in ways that prescription drug-drug interaction databases miss. The pharmacist needs the complete picture — including supplements like St John's Wort, grapefruit-containing products and high-dose vitamins — to flag risks at 500/125mg, 875/125mg, 1000/62.5mg.
Products containing Clavulanate
More on Clavulanate
- With alcoholClavulanate and alcohol — is it safe to drink?
- With foodShould Clavulanate be taken with food?
- Side effectsClavulanate side effects: common, rare and warning signs
- Dosage guideClavulanate dosage guide: how much to take and when
- OnsetHow fast does Clavulanate start working?
- DurationHow long does Clavulanate last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.