The Veterinary Pharmacists Are In

At Cummings School, getting the medication right for animals large and small is their job
Carolyn Arnish and Claire Willey at the Foster Hospital for Small Animals pharmacy
“Often clinicians will come to us for our knowledge about concerns like drug stability and drug compatibility,” said Claire Willey, right, here with Carolyn Arnish at the Foster Hospital for Small Animals pharmacy. Photo: Anna Miller
May 8, 2018

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As veterinary pharmacists, Claire Willey and Carolyn Arnish have one of the most uncommon jobs in the country: they are two of only about 100 such specialists working at veterinary schools across the country.

At Cummings School of Veterinary Medicine, Willey, pharmacy supervisor, and Arnish, a staff pharmacist, work in a pharmacy that’s open from 8 a.m. to 8 p.m. weekdays and 8 a.m. to 5 p.m. on weekends—at a time that Cummings Veterinary Medical Center’s case load has skyrocketed to more than 34,000 animals a year.

Willey, a graduate of the University of North Carolina Eshelman School of Pharmacy, and Arnish, a graduate of the Massachusetts College of Pharmacy, recently spoke with Tufts Now about how veterinary pharmacy has proved the perfect career fit.

Tufts Now: At Cummings School, veterinarians and clinicians prescribe medications every day. How do you help?

Claire Willey: We review and fill prescriptions, and we’re also consulted when something new comes up. Often clinicians will come to us for our knowledge about concerns like drug stability and drug compatibility. For instance: “I don’t want to put in another IV. Can I prescribe these two oral medications together?” We are also consulted to puzzle out the best dose. All dosing is weight based—one little movement of a decimal can be an under dose or an overdose.

Carolyn Arnish: I say we’re spellcheckers for doctors. Our job is to make sure they put the script in correctly, that they have the right weight, and that the frequency of that drug is appropriate. We do a ton of math all day.

We also have to understand drugs in relation to animal metabolisms, what are called pharmacokinetics and pharmacodynamics. We need to know how the animal’s unique metabolism affects the drug from absorption through elimination, and how the drug affects the body—what is its purpose. A newer branch of our field is pharmacogenomics, which is the study of how drugs behave differently in the body based on a person’s or animal’s genes. There are significant differences across all species when it comes to drug metabolism. For example, dogs have a much faster gastric transit time, which means the drug has less time to absorb into the blood stream to exert its effect.

How did you both get into the field?

Willey: I was always a big animal lover. I was the kid who always asked for a pony—who legitimately asked for a pony!—and never got one. I’m not sure why I didn’t think about becoming a vet, but I didn’t. Then, in my second year of pharmacy at UNC, a guest lecturer talked to us about opportunities in veterinary medicine. I had my eureka moment: that is what I should be doing

Arnish: I grew up in Massachusetts and remember my mom bringing me to the Cummings School open house. I remember it so vividly—the teddy bear clinic and the police dog demo. I said to myself, when I grow up I want to work at Tufts. I always wanted to be a vet, but I am extremely allergic to cats and some breeds of dogs, so I knew it probably wasn’t going to work out. Instead, I focused on health care and picked pharmacy and, like Claire, when I heard about opportunities in veterinary hospitals, I knew that’s exactly what I wanted to do. To come full circle back to Tufts, that’s amazing for me.Carolyn Arnish, left, and Claire Willey discuss prescriptions with a veterinarian at the pharmacy window. Photo: Anna Miller

Do you have a sense that you’re in an animal hospital? Do you get the thrill of being among animals—all shapes and sizes?

Willey: Any day anyone brings up to the window a cute puppy or, for me, if a draft horse walks by, that’s a great day.

Arnish: Our office is located right on the corridor of the Large Animal Hospital, so from our window we also can see the horses being led to their treatment or therapy. Also, I think one of the things that attracted me to veterinary pharmacy the most is that you learn something new absolutely every day. Today when I came in to the hospital, I walked by a couple of donkeys. You just don’t get that anywhere else.

What’s the most rewarding aspect of your work?

Arnish: I am always learning something. We always have an open dialogue with the clinicians, particularly around species that we don’t see routinely. Our senior clinicians have the knowledge and experience to say, “oh yes, I’ve done that before,” and so I am learning from them all the time. We had a script for a fifteen pound iguana and I thought, there is no way this animal weighs this much. But it was, in fact, a fifteen pound iguana.  

Willey: I can’t say enough good stuff about my team. Everyone does what needs to be done to make sure that the pharmacy is running well and the patients are safe. On a busy day we might see 100-plus in-patient prescriptions and maybe seventy-five for animals being discharged home. Some days are slower, but if the ER gets really busy one night, the next day we are doing everything we can to keep up with demand. You don’t really know, one day to the next, what it’s going to be like. We are flexible and roll with the punches—that’s pharmacy in general.

Veterinary pharmacy is a very small field—does that have unique challenges?

Willey: People always say pharmacy is a small world—it is. Everyone literally knows everyone. A lot of the people who started the Society of Veterinary Hospital Pharmacists also pioneered the field—they figured everything out. Today everybody is very good about bouncing ideas off each other.  

A big piece of working in this field, too, is being willing to go where the job is. I was born and raised in North Carolina, and if you had told me five years ago that I was going to live above the Mason-Dixon Line, I would have told you were crazy.

Laura Ferguson can be reached at laura.ferguson@tufts.edu.  

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