Veterinary drug interaction checker
Check how two or more pet medications interact
Pick the medications below and tap Analyse. Results are graded by severity and sourced from authoritative veterinary drug references. For information only — always confirm with your vet.
How the Interaction Checker works
Pick your medications
Search and select two or more drugs your pet is on or considering. The Interaction Checker supports up to ten at a time.
Click Analyse
We scan the combination against ~440 documented pair-wise interactions in our veterinary drug database.
Review by severity
Results are graded Contraindicated → Major → Moderate → Minor, each with clinical effect, management guidance, and source citation.
Confirm with your vet
This tool is for information only. Always discuss medication changes with your veterinarian before acting.
Understanding severity tiers
Every flagged interaction is graded by clinical risk, following the conventions used in standard veterinary pharmacology references.
Should never be used together — significant risk of serious harm to your pet.
Serious interaction. Avoid this combination unless your vet has specifically prescribed both with monitoring.
Use together with caution. Your vet may need to adjust doses or monitor for side effects.
Mild interaction. Typically manageable, but worth mentioning to your vet.
Frequently asked questions
Quick answers about how the Interaction Checker works and how to use the results safely.
What is a veterinary drug interaction?
A veterinary drug interaction happens when two or more medications given to the same pet affect each other — changing how each works, increasing side effects, or causing new clinical problems. Interactions can be pharmacokinetic (one drug changes how the body absorbs, metabolises, or eliminates the other) or pharmacodynamic (drugs have overlapping or opposing effects in the body).
How does PetCare.AI check for interactions?
The Interaction Checker scans pairs of medications you have selected against our veterinary drug-interaction database — hundreds of documented pair-wise interactions compiled from authoritative veterinary drug references and clinical guidelines. Results are graded by severity and include the clinical mechanism, management guidance, and source citation for each interaction.
What sources does the interaction checker use?
The checker draws on standard veterinary drug handbooks, peer-reviewed clinical guidelines (RECOVER CPR Guidelines, AAHA Diabetes Management), regulatory registries (CDSCO Veterinary Drug Approval Registry), and authoritative databases (Washington State University VCPL). See the References section on any drug detail page for the full bibliography.
Should I stop a medication if an interaction is flagged?
Do not stop, change, or substitute any medication based on this tool alone. Always consult your veterinarian. Some interactions are clinically managed with dose adjustments, and some medications must be tapered rather than stopped abruptly. Use a flagged interaction as a starting point for a conversation with your vet, not a directive.
Does the checker cover every pet medication?
PetCare.AI’s drug reference covers around 580 commonly prescribed veterinary medications across dogs, cats, and exotic species, plus several human medications routinely used in veterinary practice. The checker only flags interactions documented in our database — absence of a flag does not guarantee safety, particularly for newer, off-label, or species-specific use.