Why can't dogs process caffeine and theobromine like humans?

Hello. Caffeine & theobromine are methylated xanthine alkaloids of plant origin. Methylxanthines are rapidly absorbed in the gut & it is thought that they act through the inhibition of cyclic nucleotide phosphodiesterases & antagonism of receptor-mediated actions of adenosine, a amino acid. They also stimulate catecholamine synthesis & release. Overall effects include CNS stimulation, enhanced force & rate of myocardial contractions, increase gastric secretions, smooth muscle relaxation & diuresis. This is what causes the vomiting, diarrhea, restlessness, elevated & irregular heart rates, increased thirst/urination, rigidity/seizures, eventually leading to coma & death. Hope this helps. Thanks for using Petco Pet Education Center, formerly Petcoach.

Oh dear! You're right that cocoa powder can certainly be toxic to dogs; coffee can as well, since they don't tolerate caffeine very well. But the good news is, I would not expect a single prepackaged coffee drink like this to contain enough of either one to cause any serious toxicity issues in a large-breed dog. It's possible that he may have some mild stomach upset if he isn't used to eating things like this, but otherwise I would not expect to see any serious problems. To be safe, it would be best to monitor him for the next 12 hours for any signs of toxicity - which would include repeated episodes of vomiting or diarrhea, restlessness or hyperactivity, muscle tremors, or even seizures. If you see anything that concerns you, you can always take him to the vet to be checked.

Yes, you are correct that the substance in cocoa that is toxic to dogs and cats is called theobromine. The half-life of theobromine is 7.5 hours. That means half of it will be gone from her system in 7.5 hours, then half of the remaining theobromine in 7.5 hours, and so on. Given that the amount was low in the hot cocoa, and the fact that she only ingested a little bit that had been diluted by water from sitting in the sink, you do not need to worry, she should be fine :-)

It is likely that most of the caffeine and theobromine will have been digested and absorbed prior to defecation. I would monitor for any symptoms in the other dog to be on the safe side. As with any chocolate toxicity, it is best to have your veterinarian examine your dog to administer the most appropriate treatment. I hope this helps! Please let me know if you have any other questions or concerns.

In order to tell you whether your dog is in serious danger, we would need your dog's weight and the amount of beans eaten. Coffee beans contain 600mg of caffeine per oz, which is toxic. add theobromine from the chocolate (varies). If a 10lbs dog ate 1/2 oz of coffee beans he would have ingested a toxic amount. Please take your dog to a pet ER now, where they can make Rufio regurgitate the coffee beans, or call the following number: 24/7 Animal Poison Control Center 855-764-7661 $49 USD per incident fee applies

The amount of theobromine Alfie has been exposed to is relatively low. It is unlikely he will show any outward signs of theobromine poisoning. However, it is recommended that you closely monitor him in case symptoms do develop.

A 40 pound husky would need to ingest quite a bit more chocolate to cause signs of toxicity, and you would see signs of toxicity no more than 12 hours after ingestion. I’d be worried that Suka’s panting and elevated heart rate could be unrelated. Panting can be a sign of pain or anxiety and if it continues you may want to see your veterinarian.