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Dr. John
Dr. John, Texas Veterinarian
Category: Dog Veterinary
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Experience:  Over 14 years of clinical veterinary experience
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My dog ate 1200mg of my chelated magnesium citrate pills, should

Customer Question

My dog ate 1200mg of my chelated magnesium citrate pills, should i be worried? Thank you!
Submitted: 2 years ago.
Category: Dog Veterinary
Expert:  Dr. Michael Salkin replied 2 years ago.
The large dose of magnesium citrate is likely to act as a saline cathartic rather than completely absorbed through his gastrointestinal tract. Except for possible cramping and nausea, adverse effects in otherwise healthy patients generally occur only with saline cathartics with chronic use or chronic overdoses A single overdose can still cause electrolyte disturbances - hypermagnesemia, in this case, which is manifested by muscle weakness, ECG changes, and depression. If it's been less than an hour since he ingested the pill, it would be prudent to induce emesis by dosing him with 3% hydrogen peroxide at a dose of one measuring teaspoon per 5 lbs of body weight by means of a small poultry baster placed between his cheek teeth and cheek. He should vomit within 15 minutes. If not, please give the same dose once again.
Customer: replied 2 years ago.
I think it's been moRe than an hour, should I try the peroxide anyway? What if she doesn't vomit?
Expert:  Dr. Michael Salkin replied 2 years ago.
If it's been over a two hours and she has remained asymptomatic, please don't induce emesis. The pill is likely to already have passed into her small intestine. If it's been near an hour post-ingestion, it would be prudent to induce emesis. If she doesn't vomit, please give the same dose again. Keep me posted, please.
Customer: replied 2 years ago.
It had been over 2 hours. Should I expect her to have severe diarrhea?
Expert:  Dr. Michael Salkin replied 2 years ago.
Thank you for the additional information. I would expect diarrhea, yes. Magnesium is quite a laxative! Of course that which isn't absorbed isn't going to contribute to the toxicity associated with hypermagnesemia...which is rarely a problem with a single overdose in any event.