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Animal Behavior in a Post COVID-19 World


Animal Behavior in a Post COVID-19 World
Photo by smrm1977/shutterstock.com

It has been a tough year for everyone in the veterinary field (OK, that may be the understatement of the year). Between switching to curbside medicine, dealing with irate owners, or working longer hours with fewer staff for double the clients and patients, it goes without saying that we all hope the pandemic will be over soon. However, the end of the pandemic will usher in new challenges within the field that may be just as frustrating to address, especially if the mere mention of behavior sends you running for the nearest referral brochure or crying in the bathroom in between appointments.

My biggest post-pandemic behavior concerns lie with those dogs and cats who were acquired during this last year. The threat of social isolation from loved ones, and the seemingly perfect opportunity to be home, caused many people to rush out and get a pandemic pet. And while these pets have likely been emotional lifelines for many humans during this time, these dogs and cats have no idea what “normal” is for their families. Couple that with mostly inexperienced new pet parents, and I think it’s a potential recipe for disaster when life resumes some sense of normalcy. The lack of appropriate socialization and interactions with other pets and people may set many of these patients up for a lifetime of fear-based behavior, but the area I will address today is the possibility of development of post-pandemic separation anxiety.

While these pets have likely been emotional lifelines for many humans during this time, these dogs and cats have no idea what ‘normal’ is for their families.

On our new client questionnaire, we ask how long the pet is left home alone during the day. I cannot tell you how many of those have been filled out with some form of the following this past year: “They have never been left home alone.” Cue my head exploding. My jealousy about people being able to work from home in their pajamas this entire year notwithstanding, these pets have no idea that people leave the home without them. Does that mean that every one of these animals is going to develop separation anxiety post-pandemic?

That’s really unlikely, but of course in these unprecedented times, we just don’t know what the fallout will truly be. Whether a particular pet is going to manifest separation anxiety depends on some innate factors about the pets themselves (for example, their individual emotional resiliency, their level of pathologic attachment to the owner, their underlying predisposition to anxiety and panic disorders, etc.), environmental factors (for example, will the owner be allowed to work from home part-time or start only with half days, etc.), and the pet’s prior learning and experiences (for example, has there been appropriate reinforcement for independent behavior, has excessive attention seeking been rewarded in the past, did the pet have separation anxiety prior to relinquishment by a former owner, etc.). While we don’t know the full extent to which we will be dealing with separation anxiety in our patients (and yes, cats get separation anxiety too), what should we be doing to prevent and screen for this disorder?

First, if the owners are not already doing so, encourage them to leave their pets home alone on occasion. Next, we should be screening for signs of separation anxiety and its common comorbidities, including noise and storm phobias,1,2 every time we see these pets.

This can be done by the client care representatives when they speak to the owner to make appointments, via a written questionnaire the owners fill out in advance (ask your friendly pharmaceutical representatives because they often have these available), by the veterinary assistant or veterinary nurse when they perform vital signs and take the chief complaint history, or even the clinician while you are performing the physical exam on the pet or when discussing your findings.

Owners should be asked if there are any obvious signs such as house soiling, destruction, or vocalization (resulting in neighbor or tenant complaints) when the pet is left home alone. A full physical exam and diagnostics (i.e., minimum database of CBC, chemistry panel, urinalysis, and fecal) will rule out a medical etiology, and videoing the pet when home alone will then confirm the underlying behavioral cause. There are subtle presenting symptoms that indicate the owner needs to video to confirm if the pet is suffering from separation anxiety such as anorexia when alone, polydipsia upon owner return (likely the result of lack of drinking and/or excessive panting), blocking the owner’s exit from the home, avoidance of confinement, hyperattachment (following owners excessively), and an exuberant greeting upon owner return. Any signs of anxiety seen on video are too many and need to be addressed immediately.

Treatment for separation anxiety involves behavior modification and, depending on the severity, anxiolytic products and medication. Instruct the clients to leave the pet with a delicious snack like a frozen Kong or puzzle toy to not only keep them occupied but also to help associate the owner’s departure with something amazing. The owners should remain calm and ignore the pet for 20 to 30 minutes prior to leaving so as not to create a heightened state of arousal just prior to departure. Owners should never punish the pet for house soiling or destruction as it will only serve to increase the anxiety associated with anticipation of the owner’s return. For more client information on the initial training steps for separation anxiety, please visit this website. Another great client resource is the newest edition of “Separation Anxiety in Dogs: Next Generation Treatment Protocols and Practices.”

The 2 most commonly used medications for separation anxiety are the FDA approved Reconcile® (fluoxetine, a selective serotonin reuptake inhibitor) by PRN® Pharmacal3,4 and clomipramine, a tri-cyclic antidepressant.5,6 Reconcile and clomipramine may take up to 4 weeks to see full effect and should always be started at the low end of the dose range to minimize potential for side effects and increased only as needed. In the meantime, clinicians can prescribe event/situational medications to be given immediately prior to departures. Options for pre-departure medications (given 90 minutes to 2 hours prior to departures) include the serotonin antagonist and reuptake inhibitor trazodone (2.5-10 mg/kg), the alpha-2 agonist clonidine (0.01-0.05 mg/kg), the alpha-2-delta ligand gabapentin (20-40 mg/kg), and a benzodiazepine like lorazepam (0.01-0.1 mg/kg). Other products that may improve treatment outcomes include the maternal appeasing pheromone,7,8 l-theanine supplements,10 probiotics,11 and alpha-casozepine supplementation.12

With all the excitement of people getting vaccinated (and maybe traveling to conferences again!), don’t forget that your clients are headed back to work and their pets are staying home, maybe for the first time ever. And if the mere mention of a dog howling all day and destroying the house or a cat peeing outside a litter box when the owner is gone makes you want to quit vet med and work at home in your pajamas, feel free to find me or my colleagues for some advice or a referral.


1. Bamberger, Michelle, and Katherine A. Houpt. “Signalment factors, comorbidity, and trends in behavior diagnoses in dogs: 1,644 cases (1991–2001).” Journal of the American Veterinary Medical Association 229.10 (2006): 1591-1601.
2. Overall, Karen L., Arthur E. Dunham, and Diane Frank. “Frequency of nonspecific clinical signs in dogs with separation anxiety, thunderstorm phobia, and noise phobia, alone or in combination.” Journal of the American Veterinary Medical Association 219.4 (2001): 467-473.
3. Simpson, Barbara Sherman, et al. “Effects of reconcile (fluoxetine) chewable tablets plus behavior management for canine separation anxiety.” Veterinary Therapeutics 8.1 (2007): 18.
4. Landsberg, Gary M., et al. “Effectiveness of fluoxetine chewable tablets in the treatment of canine separation anxiety.” Journal of veterinary behavior 3.1 (2008): 12-19.
5. King, J. N., et al. “Treatment of separation anxiety in dogs with clomipramine: results from a prospective, randomized, double-blind, placebo-controlled, parallel-group, multicenter clinical trial.” Applied Animal Behaviour Science 67.4 (2000): 255-275.
6. King, J. N., et al. “Results of a follow-up investigation to a clinical trial testing the efficacy of clomipramine in the treatment of separation anxiety in dogs.” Applied Animal Behaviour Science 89.3-4 (2004): 233-242.
7. Gaultier, Emmanuel, et al. “Comparison of the efficacy of a synthetic dog‐appeasing pheromone with clomipramine for the treatment of separation‐related disorders in dogs.” Veterinary record 156.17 (2005): 533-538.
8. Kim, Young-Mee, et al. “Efficacy of dog-appeasing pheromone (DAP) for ameliorating separation-related behavioral signs in hospitalized dogs.” The Canadian Veterinary Journal 51.4 (2010): 380.
9. Pike, Amy L., Debra F. Horwitz, and Heidi Lobprise. “An open-label prospective study of the use of l-theanine (Anxitane) in storm-sensitive client-owned dogs.” Journal of Veterinary Behavior 10.4 (2015): 324-331.
10. DePorter, T. L., D. L. Bledsoe, and J. R. Conley. “Case report series of clinical effectiveness and safety of Solliquin™ for behavioral support in dogs and cats.” Veterinary Behavior Symposium Proceedings. San Antonio (TX). 2016.
11. McGowan, R. T. S., et al. “Tapping into those ‘gut feelings’: Impact of BL999 (Bifidobacterium longum) on anxiety in dogs.” Veterinary Behavior Symposium Proceedings, Denver, CO. 2018.
12. Beata, Claude, et al. “Effects of alpha-casozepine (Zylkene) versus selegiline hydrochloride (Selgian, Anipryl) on anxiety disorders in dogs.” Journal of Veterinary Behavior 2.5 (2007): 175-183.