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Human Medications that are Poison for Dogs

Top 10 Human Medications That Poison Dogs

Top 10 Human Medications That Poison Dogs

The ASPCA by way of Dogster’s has a list of 10 most frequent medications for people that end up poisoning dog(s).  They are:

NSAIDs (non-steroidal anti-inflammatory drugs) like ibuprofen or naproxen are the most common cause of pet poisoning in small animals, and can cause serious problems even in minimal doses. Pets are extremely sensitive to their effects, and may experience stomach and intestinal ulcers and—in the case of cats—kidney damage.

Antidepressants can cause vomiting and lethargy and certain types can lead to serotonin syndrome—a condition marked by agitation, elevated body temperature, heart rate and blood pressure, disorientation, vocalization, tremors and seizures.

Cats are especially sensitive to acetaminophen, which can damage red blood cells and interfere with their ability to transport oxygen. In dogs, it can cause liver damage and, at higher doses, red blood cell damage.

Methylphenidate (for ADHD)
Medications used to treat ADHD (Attention Deficit Hyperactivity Disorder) in people act as stimulants in pets and can dangerously elevate heart rates, blood pressure and body temperature, as well as cause seizures.

Fluorouracil—an anti-cancer drug—is used topically to treat minor skin cancers and solar keratitis in humans. It has proven to be rapidly fatal to dogs, causing severe vomiting, seizures and cardiac arrest even in those who’ve chewed on discarded cotton swabs used to apply the medication.

Often the first line of defense against tuberculosis, isoniazid is particularly toxic for dogs because they don’t metabolize it as well as other species. It can cause a rapid onset of severe seizures that may ultimately result in death.

Pseudoephedrine is a popular decongestant in many cold and sinus products, and acts like a stimulant if accidentally ingested by pets. In cats and dogs, it causes elevated heart rates, blood pressure and body temperature as well as seizures.

Many oral diabetes treatments—including glipizide and glyburide—can cause a major drop in blood sugar levels of affected pets. Clinical signs of ingestion include disorientation, lack of coordination and seizures.

Vitamin D derivatives
Even small exposures to Vitamin D analogues like calcipotriene and calcitriol can cause life-threatening spikes in blood calcium levels in pets. Clinical signs of exposure—including vomiting, loss of appetite, increased urination and thirst due to kidney failure—often don’t occur for more than 24 hours after ingestion.

Baclofen is a muscle relaxant that can impair the central nervous systems of cats and dogs. Some symptoms of ingestion include significant depression, disorientation, vocalization, seizures and coma, which can lead to death.

If you suspect your pet has ingested any of the following items, please call your veterinarian or the ASPCA Animal Poison Control Center’s 24-hour hotline at (888) 426-4435. And remember to keep all medications tucked away in bathroom cabinets—and far from curious cats and dogs.

Please also remember that chocolate is also deadly for dogs and dark chocolate is the most deadly.  Keep all of these items safely tucked away from your loved one(s) at all times.


1 Hank Marshall { 09.12.09 at 5:03 pm }

Question– about the use of baby aspirin for dogs pain.
Some articles say it is OK– some say NOT.
All say to NOT use Tylenol or Ibuprofen.
What is the truth about aspirin use for dogs?

2 Kyle ALexander { 12.24.10 at 7:06 pm }

ibuprofen can be quite dangerous, as can tylenol. your best option is to use child versions of these medications. childrens sudafed is a good one!

3 Dr W { 01.02.11 at 6:43 pm }

Do not give Tylenol or ibuprofen to dogs even in childrens formula. Contact your vet for an appropriate asprin dose for your dog’s weight.

4 Dr W { 01.02.11 at 6:44 pm }

Do not give Tylenol or ibuprofen to dogs even in childrens formula. Contact your vet for an appropriate asprin dose for your dog’s weight.

5 Danny { 05.11.11 at 10:33 am }

I have given vicodin to my 14 year old dog several times. She suffers from cancer and does not have much longer to live. I guess I am selfish in the fact that I cannot let her go. I feel that if the vicodin kills her at least she will be at peace.

6 Dj { 06.06.11 at 4:41 pm }

My heart goes out to you and your best friend!

7 Best Mooresville nc dog walker company { 07.20.13 at 5:26 am }

It’s really an informative topic you have shared here, there are many things which are useful for human but they may be harmful for dogs, this article is really helpful and give useful instruction to all the dog lovers, keep it up. I just want to say thanks for sharing this informative article.

8 Doug { 08.22.13 at 10:03 am }

My Sun Conure just a 1/2 of my wifes cancer pill (Gleevec 400 mg)

What should I do?

9 bob { 09.01.13 at 9:00 pm }

Well…what happened to your dog? Is it cancer free?

10 Sam Knight { 10.08.13 at 12:48 am }

Truly the best comeback in history. Thanks bob!

11 Cynthia { 07.02.14 at 5:41 am }

Do not call your vet. This is not something they deal with. Call yours and see. I just went through this yesterday. My dog ate one of my Tegratol 200 mg. I called the vet who didn’t know what to do, and this is a common medication, she gave me the ASPCA number. While on hold forever I went to the pharmacist and back home still on hold. The Pharmacist was my best help he told me what to do if it where a small child. Today I am researching what to do for all our medications. To much time was wasted trying to find out yesterday. By the way my dog is fine.

12 Anna Dault { 10.07.14 at 9:23 pm }

My 13 yr old Yorkie mix has c.h.f. , she suffers from a bad knee also. We give her 2 pain pills, 1 water pill, was 2 heart pills but stopped one because its so expensive, and 2 anxiety pills a day! We love her so much, but it hurts us so to see her suffer,,, when do you say,”Its enough!” My husband & I are both disabled, in pain daily, aren’t able to care for her like she deserves & needs to be.How do you love one enough to say goodbye?

13 Kendra Mixon { 10.30.14 at 7:03 am }

I just had to make that choice with my momma dog after having her for 14 years. I got her when she was2 weeks old. Her mom died of heat exhaustion. Anyways she had breast cancer and I remember my grandma said when her cancer came back she refused o go through the last of her life feeling to sick to enjoy it. So I would not put my dog through it. So I just waited until I noticed it to start bothering her then I set a 3 week test time. A quality of life test. In those 3 weeks she only had 6 OK days 3 good days. So I knew it was time. This was well over a year after she got cancer though. But if she is on all those meds and still not having a good quality of life then its time to let her go. I swear its the hardest thing you will ever have to do in your life though but its the right thing to do. She gave you the best if her life to you now its your turn to do the best thing for her

14 Deanna { 01.04.16 at 5:37 am }

It’s fantastic that you are getting ideas from this post
as well as from our dialogue made here.

15 Tiffany { 01.11.16 at 3:53 pm }

I found a nitroglycerine pill on my floor, just barely nibbled on. My pup is 7weeks old. IDEAS PLZZZZ

16 Lori { 03.23.16 at 2:33 am }

My pregnant husky ate half of a magnesium oxide 400 mg tablet, what do I do? We have been trying to find out what to do online but, we haven’t had any luck. Please help!!

17 Patricia { 08.14.17 at 1:10 pm }

I had the same thing and i took my puppy to the vet this morning and she said she would be fine its for the stomach

18 Ahekigel { 09.03.17 at 8:46 am }

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