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O’Sullivan Animal Hospital is officially certified as both a COMPANION ANIMAL HOSPITAL AND AN EMERGENCY HOSPITAL!!! 
We are now Barrie’s only 24 HOUR EMERGENCY ANIMAL HOSPITAL!!

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In response to the recent theft of O’Sullivan Animal Hospital’s donation box, Sarah Mac of Practice Play Believe has generously offered to help O’Sullivan Animal Hospital try to recoup at least some of the donation money. Beginning Thursday November 19th until the 31st of December, all profits from Practice Play Believe’s Buddha clothing line will be donated to the O’Sullivan Animal Hospital charity fund. To learn more about this inspiring company, and help animals in need of rescuing, visit or visit them on facebook!


Attention Cottagers/Camper and Hikers: Massasauga Rattlesnake

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Brava2bravaAttention Cottagers/Campers and Hikers!
This sweet dog was on vacation in Parry Sound when she had an unfortunate run in with a Massasauga Rattlesnake. Fortunately her owners brought her in immediately to O’Sullivan Animal Hospital for prompt veterinary care and has since gone back home with the owners and is doing very well! This is the second Rattlesnake bite that we have seen this summer!
Rattlesnakes are typically a docile animal, and biting is their last defense; if they feel threatened, they are most likely to rattle or retreat undercover. In Ontario, they can be found near the eastern shore of Georgian Bay, the Bruce Peninsula, and the north shore of Lake Huron; they live in a variety of habitats such as, swamps, marshes, forests, grasslands and rock.
Massasauga’s are venomous, but don’t always inject venom when they bite; however if they do, it is a medical emergency and requires medical intervention immediately. If you think a rattlesnake may have bitten your dog, seek prompt veterinary care.
If injected into a human or animal, the effects of the venom are the same as what happens to the rattlesnakes prey. The venom is a digestive enzyme, and IMMEDIATELY INTERRUPTS BLOOD FLOW AND PREVENTS BLOOD FROM BEING ABLE TO CLOT. This is an emergent and very serious medical condition – as well as being excruciatingly painful.
Seek IMMEDIATE veterinary care and DO NOT DELAY going to the nearest veterinary clinic. Do not wait for “morning”, “the end of the weekend”, or your “regular” vet. Immediate treatment may be the key to your dog’s survival.
Never apply a tourniquet, ice, cut the bite area or apply suction to the wound. Never try to catch or kill the snake; this is unnecessary, dangerous, and illegal due to the snakes protected status.
For your dog’s safety, it is always best to keep them on a leash, particularly in the areas listed above, known Massasauga Rattler sightings, and in areas you are unfamiliar with. A dogs natural curiosity and predator instincts put them at a high risk for bites.


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bobbiIntroducing Bobbi! Bobbi came to O’Sullivan Animal Hospital as a stray, the lady who had been feeding her noticed she’s had a badly injured tail since November and that Bobbi was becoming very sick and lethargic as a result. Bobbi was indeed a very sick girl and needed several days of IV fluids and injectable antibiotics before we took her to surgery to amputate her tail. She’s bounced back beautifully and has found her new for ever home!!

February is Dental Health Month!

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! The importance of Dentistries in Dogs and Cats

Just like us, dogs and cats require regular dental cleanings. Animals are subject to similar periodontal diseases as humans, such as gingivitis, plaque, bad breath, infected teeth and cavities. Dental disease progresses in stages — if caught early, you can prevent further damage to other teeth and keep as many healthy as possible. The best prevention for dental disease in all pets (just as in humans) is regular tooth brushing as well as the addition of dental food and treats. Once there is significant gingivitis, tartar build-up or infected teeth, your pet will require a full dental cleaning.

Dental disease isn’t just a problem in the mouth of the animal, The tartar and any infected areas of the mouth contain a multitude of bacteria that cause severe systemic disease by transferring to different areas of the body such as the heart, liver and kidneys. With regular dental care, you can prevent some of these more serious side effects and help improve the comfort and over-all well being of your pet. Make preventive dental cleaning part of your wellness care for your pets. For more information or if you have any questions about the dental procedure, feel free to give us a call at anytime!

February is Dental Health month ask us about our promo!