Feline facial pheromone F3
**Feline facial pheromone F3** is a synthetic analogue of the natural F3 fraction used by cats for facial marking of their physical environment. It is widely used to manage stress-related behaviors such as indoor urine marking, inappropriate scratching, and situational anxiety (e.g., transport, vet visits, environmental changes). > **Clinical Warning:** Residual enzymatic cleaners can break down the active ingredient. Ensure soiled areas are thoroughly rinsed and completely dry before applying the F3 spray. **Clinical Pearl:** Pheromones are highly species-specific. This product will not have any behavioral effect on dogs or humans in the household.
Mechanism: The synthetic F3 analogue stimulates receptors in the **vomeronasal organ** (Jacobson's organ) → transmits signals to the **limbic system** → induces a calming and reassuring effect, particularly in the presence of stimuli associated with threats to physical resources or territory.
Dosing by species
- Familiarization in stressful situations or new environments · Apply spray 30 minutes before the cat has access to the area · Environmental · prn · As needed · Can be applied to consultation or preparation tables to aid handling for anesthesia induction and medical exams.
- Existing urine marking · 1 dose (one depression of the nozzle) from about 10 cm from the soiled site at a height of about 20 cm from the floor · Environmental · sid · Ongoing · In multicat households, apply 2-3 times/day on previously marked sites and once a day on other locations of behavioral significance.
- Prevention of urine marking · Spray once per day in locations of behavioral significance · Environmental · sid · Ongoing
- General anxiety and environmental changes · 1 diffuser per 50-70 m² · Environmental · Continuous · Ongoing · Place in the room most frequently occupied by the cat. If area exceeds 70 m² or air conditioning is used, add a second diffuser.
Doses are a clinical reference for licensed veterinary professionals. Always confirm against the current label and the individual patient.
Routes of administration
Contraindications
- None reported
Adverse effects
- None reported in animals
Monitoring
- Behavioral response (reduction in urine marking, scratching, or signs of anxiety)
Overdose
Not applicable as the product is applied to the environment and not administered systemically.
VetSheet drug reference is intended for licensed veterinary professionals as a clinical decision-support aid, not a substitute for professional judgement or the manufacturer’s current label.