Halcyon FE Calming Collar for Cats Vaccine 1/4 oz bolus as soon

1/4 oz bolus as soon as possible

These pads have an 18% larger absorbent area than other pads and feature four "stay-put" tabs to keep them securely in place

While not specifically a senior formula

Recognized for official use in interstate animal transport

Halcyon FE Calming Collar for Cats Vaccine 1/4 oz bolus as soonHalcyon FE Collar Halcyon contains a unique proprietary pheromone (2M2B) that is clinically proven to be safe and effective in addressing a wide range of behavior issues in cats. Features: Promotes Calmness: Helps with separation anxiety, sound anxiety (loud noises), and travel stress. Long Lasting Effect: Provides continuous support for up to 30 days. Customizable Fit: Fits necks up to 13 inches and can be cut to fit smaller necks. Soothing Lavender