Narcolepsy and Cataplexy is a low-severity neurological condition that can affect dogs of all ages and breeds. Canine narcolepsy is a sleep disorder characterised by sudden bouts of sleep or cataplexy (sudden muscle paralysis triggered by excitement). It is caused by a deficiency in orexin (hypocretin) signalling and can be hereditary or sporadic. It is documented across 4 breeds, though prevalence and severity can differ significantly between them. It typically becomes apparent at Under 6 months (hereditary) or any age (sporadic). Early signs to watch for include sudden collapse into sleep, cataplexy triggered by eating or excitement, rapid recovery to normal activity, and repeated episodes. When treatment is required, costs are estimated at £200-£800/year depending on severity, location, and the specific intervention needed. Narcolepsy and Cataplexy has a hereditary component, so health-screening certificates from the breeder are strongly recommended for predisposed breeds. This page covers symptoms, treatment options, and preventive steps — along with breed-specific information where available.

Signs & Symptoms

The following symptoms are commonly associated with Narcolepsy and Cataplexy in dogs. If your dog displays several of these signs, consult your vet promptly — early diagnosis typically leads to better outcomes.

• Sudden collapse into sleep
• Cataplexy triggered by eating or excitement
• Rapid recovery to normal activity
• Repeated episodes
• Otherwise normal behaviour and health

Treatment Overview

Imipramine or dextroamphetamine reduce cataplectic attacks. Many dogs with mild disease require no treatment. Triggers should be minimised. The condition does not shorten lifespan.

Typical onset: Under 6 months (hereditary) or any age (sporadic)

Prevention & Screening

While not all cases of Narcolepsy and Cataplexy can be prevented, the following steps reduce risk or enable earlier intervention:

• DNA test available for familial forms in Dobermanns and Labradors
• Avoid breeding affected dogs

Breeds Affected by Narcolepsy and Cataplexy

The following 2 breeds are documented as being susceptible to Narcolepsy and Cataplexy. Click any breed to view breed-specific information about this condition, including prevalence and recommended screening.

• Labrador Retriever (large)
• Dachshund (small)