Xalatan drug interactions: a practical overview
Drug interactions are the single biggest cause of preventable medication problems. Xalatan (Latanoprost) interacts to varying degrees with several classes of medication and with a smaller list of foods. This page summarises the practically important ones at 0.005%, framed for a real-world prescription review rather than an exhaustive PDF list.
High-priority interactions for Xalatan
For Latanoprost, the most clinically relevant interactions are typically with strong CYP3A4 inhibitors and inducers, with cardiovascular medications (notably nitrates for several Eye Care and Ophthalmic Treatments agents), with central nervous system depressants, and with medications affecting blood pressure or heart rate. Latanoprost is a prodrug ester hydrolysed by corneal esterases to its active free acid, which selectively binds the prostaglandin F (FP) receptor.
Working with the pharmacist
A pharmacist review of all current medications is the practical safeguard against unintended interactions with Xalatan. According to the prescribing information for Latanoprost, the full medication list — prescription, OTC, supplements and recreational substances — should be reviewed before starting and at every dose change at 0.005%.
Frequently asked questions
What's the most important Xalatan interaction to know? ▾
For most Eye Care and Ophthalmic Treatments 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 0.005% doses.
Do I need to tell the pharmacist about supplements? ▾
Yes. Supplements and herbal products can interact with Xalatan 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 0.005%.
More on Xalatan
- With alcoholXalatan and alcohol — is it safe to drink?
- With foodShould Xalatan be taken with food?
- Side effectsXalatan side effects: common, rare and warning signs
- Dosage guideXalatan dosage guide: how much to take and when
- OnsetHow fast does Xalatan start working?
- DurationHow long does Xalatan last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.