Why this medication may be prescribed
May help with predictable stressful events such as travel or veterinary visits. It may also be prescribed regularly when anxiety, pain or heightened physical sensitivity contributes to the problem.
How it works
It acts on calcium channels in nerve cells, reducing release of stimulating chemical messengers. Despite its name, it does not directly activate GABA receptors.
When should I expect an effect?
For pre-visit use in cats, effects are often assessed around 90 minutes after administration, with peak effects reported around 2–3 hours. This is background information, not a change to your prescribed timing. Duration varies; ask the clinic what window to expect for your animal.
What improvement might look like
Depending on the treatment goal, improvement may mean less intense reactions, faster recovery, less avoidance, better rest or greater ability to respond to familiar cues. Complete disappearance of behaviour is not required to see progress.
Medication can reduce fear, anxiety, arousal, impulsivity, or other factors that interfere with learning. Behaviour modification and environmental management remain important parts of treatment.
Common side effects
Sleepiness; wobbliness; occasional vomiting or diarrhea.
Mild effects may be temporary. Persistent or pronounced changes should be discussed with the clinic; do not assume they are harmless.
When should I contact the clinic?
Contact the clinic for persistent vomiting or diarrhea, marked appetite loss, pronounced sedation, stumbling, weakness, unexpected worsening or significant new behaviour. Report difficulty passing urine promptly; inability to pass urine needs urgent veterinary assessment.
When is it an emergency?
What if I miss a dose?
Follow any missed-dose instructions supplied with your prescription. If none were provided, contact the clinic or your veterinarian for advice about the next dose. Do not double, repeat or make up a dose on your own.
What if I administered an extra dose?
Contact your veterinarian or an emergency veterinary hospital immediately for case-specific advice, even if no signs are visible. Have the packaging and the amount and time given available for the veterinarian. Do not induce vomiting unless instructed. This website cannot determine a safe extra amount.
Can I stop this medication suddenly?
After regular use, a gradual reduction may be needed, particularly when treatment also addresses seizures. Follow veterinary instructions for stopping.
Do not reduce or discontinue this medication without discussing it with your veterinarian.
Medication and supplement interactions
Other sedating medicines can increase sleepiness and stumbling. Kidney disease can prolong effects; tell the clinic about changes in kidney health.
Inform the clinic before adding a prescription, over-the-counter medicine, supplement, herbal product or calming product. This is not a complete interaction list.
What should I monitor?
- Onset and duration
- Alertness and coordination
- Comfort and movement
- Fear during the event and recovery afterwards
Bring your observations to follow-up.
Educational information; effects vary between dogs, cats and individuals.