Can Augmentin (amoxicillin/clavulanate) be taken concurrently with Trintellix (vortioxetine) in an adult patient without penicillin allergy or severe liver disease?

Can Augmentin and Trintellix Be Taken Together?

Yes, Augmentin (amoxicillin-clavulanate) and Trintellix (vortioxetine) can be taken concurrently without significant drug-drug interactions or contraindications. There is no pharmacokinetic or pharmacodynamic interaction between these medications that would preclude their simultaneous use.

Drug Interaction Profile

No Direct Interaction

• Augmentin metabolism: Amoxicillin is primarily renally excreted unchanged; clavulanate undergoes hepatic metabolism but not through CYP450 pathways that would interact with Trintellix 1
• Trintellix metabolism: Metabolized by CYP450 enzymes (primarily CYP2D6, with contributions from CYP3A4/5 and CYP2C19) and subsequently by UGT enzymes. The major metabolite is pharmacologically inactive 2
• No shared metabolic pathways: These drugs do not compete for the same elimination routes

Serotonin Syndrome Consideration

While Trintellix is a serotonergic antidepressant, Augmentin does not have serotonergic activity and does not increase serotonin syndrome risk 3. The FDA label for Trintellix warns about serotonin syndrome with other serotonergic drugs (SSRIs, SNRIs, triptans, tramadol, etc.), but antibiotics like Augmentin are not included in this list 3.

Important Safety Monitoring

For Augmentin

• Hepatotoxicity risk: Amoxicillin-clavulanate carries the highest incidence of drug-induced liver injury (DILI) among antibiotics 4, 5, 6
• Monitor for jaundice, nausea, vomiting, or right upper quadrant pain
• DILI can occur with delayed onset (1-3 weeks after starting or even after stopping) 4
• Take at the start of meals to minimize GI intolerance 1

For Trintellix

• Bleeding risk: Trintellix may increase bleeding risk, particularly when combined with NSAIDs, aspirin, or anticoagulants 3
• Monitor for mood changes, especially during initial treatment
• No dose adjustment needed for short-term antibiotic use

Clinical Pitfalls to Avoid

1. Don't assume GI symptoms are from the antibiotic alone: Both medications can cause nausea. If severe nausea develops with jaundice, consider DILI from Augmentin 7, 5

2. Don't confuse allergic reactions: If a rash develops, determine whether it's from amoxicillin, clavulanate (which can cause selective reactions), or neither 8, 9

3. Don't stop Trintellix abruptly: If the patient becomes too ill to take medications, taper Trintellix rather than stopping suddenly to avoid discontinuation syndrome 3

Dosing Considerations

• No dose adjustment needed for either medication when used together
• Continue Trintellix at current dose (5-20 mg daily) 3
• Dose Augmentin according to indication and patient factors (renal function, severity of infection) 1
• Augmentin should be taken at the start of meals; Trintellix can be taken with or without food

Bottom line: Proceed with concurrent use, but monitor liver function if the patient develops symptoms suggestive of hepatotoxicity during or shortly after Augmentin therapy.