Just because it can be tolerable for some dogs doesn’t mean there aren’t any negative effects of THC usage.
As mentioned, the most common issue when dogs ingest too much cannabis is ataxia. Symptoms of ataxia can be severe and include things like:
- Weakness in one or more limbs
- Head tilting
- Deafness or loss of hearing
- Stumbling or swaying
- Abnormal behaviors
- Strange eye movements
- Nausea from disruption in equilibrium
- Loss of appetite
Another common side effect of THC usage in dogs is extreme tension. Although THC is best known for relaxation – paradoxically, THC can cause your dog’s muscles to tense up which can make it hard for him or her to walk. And again, whether your dog will experience ataxia or muscle tension seems to be dependent on the physiological factors and the amount of THC ingested.
Disorientation, Dizziness & Vertigo
Just like in humans, sometimes THC can cause disorientation, dizziness and vertigo in dogs. This can make it difficult for your dog to walk or causing them to sway while walking. These effects of THC intoxication can also lead your dog to feel lethargic and have difficulty getting up just even to walk to their food or water bowl.
Excessive Drooling & Vomiting
You might also see your dog drooling excessively after ingesting cannabis. THC can cause gastrointestinal problems, including nausea and vomiting, that can cause your dog to increase the amount of saliva production. This can also cause them to stop drinking or eating properly.
Loss of Bladder Control
Another negative effect of dogs ingesting too much THC is urinary incontinence, which is mainly related to THC’s muscle relaxing properties. When your dog ingests too much THC, it can cause them to get very sleepy and loose control of the muscles in the bladder.
Paranoia & Anxiety
THC is legendary for its ability to make some people feel paranoid and anxious. The same goes for your dog. Some dogs can become very paranoid if they ingested too much THC, making them pace around, bark, cry or yelp, and pant heavily. Similarly, THC induced anxiety can turn your dog into a completely different animal, causing them to be irritable, scared, or even snappy since they’re not full aware of what’s going on.
Abnormal Heart Rate & Tachycardia
An abnormal heart rate and tachycardia are also common negative side effects of THC for dogs. This is because THC causes excessive stress on your dog’s body, causing it to overwork and making the heart beat quickly and irregularly.