Last Modified on May 17, 2016
Earth Clinic has already received extensive reports on the ailments and side effects caused by medicines prescribed for our pets by well-meaning veterinarians, and we're concerned. Please let us know about any side effects you have witnessed after your vet administered a new prescription or medication. We'd like to know the breed of your pet and also which medication/prescription he or she received. The more information you can give, the more clearly we can make conclusions about which medical treatments are causing side effects in our dogs, cats, and other pets and how best to treat them.
Please note, if your pet has experienced side effects from a vaccination, please read our extensive pet vaccination side effects page.
Home Remedies for Pets Suffering Medication Side Effects
If your dog, cat, or other pet is experiencing ill health or various side effects from a veterinary medication, you may want to consider activated charcoal, bentonite clay, or homeopathic nosodes for dogs to counteract the effects of the drug.
Remedies for Pet Medication Side Effects
The Popularity of Pet Medication Side Effects Remedies - Full List
|Bentonite Clay to Counteract||1||2011-06-24|
|Clavamox and Doxycycline||0||2012-04-08|
|Prescription Eye Drops||0||2012-03-23|
|Vibramycin / Doxycyclin||0||2015-03-06|
|Xylazine and Atropine||0||2008-09-08|
My bull terrier has received allergy shots in the past. The past week I took her for her regular shot, but they gave her a dose for a 61 to 80 lb dog. She weighs between 60 and 63 lbs. I had noticed side effects before, but not this drastically. She has been having panting episodes, especially at night. She seems more hyper and cannot get enough food.
I have been monitoring her intake as her stomach has been swollen since the shots. She has also had a very loose stool since the shot. I have given her 2 kinds of medicines for bacteria in the stomach since this happened.
I am really worried about her since I read the other readers comments about the side effects of allergy shots. I will NEVER take her to this vet again. I think they over dosed her. I am going to find another vet probably in another state as the vets here in Oklahoma seem to have no clue what they are doing. I had a 2 year old bull terrier die in November because he started having seziures. The vets here had no idea why...I just don't think these people are interested in anything but getting your money. No more allergy shots for my dog. I will find an alternative solution.
Replied by Wendy
Posted by Tome (Hendersonville, Nc) on 04/02/2011
I do not know whether the bacteria that is causing havoc among people taking antibiotics is a problem for our animals but just in case, I would think it wise to include some acidophilus in your animal's diet while he or she is on the antibiotics. Once a person is suffering from c. Diff, it is very, very difficult to cure. The cramps alone will bring a strong man to his knees and our animals will not be able to tell us about the cramps. Also, until the c. diff is under control with acidophilus, one cannot eat even a bite of banana (in my case, at least) without bringing on the cramping.
Replied by Liz
Kenmore, New York
Replied by Ali
Replied by Om
Hope, Canada, Bc
Posted by Ney (San Cristobal, S. C., Dominican Republic) on 08/21/2010
Warning! Amistar 50 WG is the name of a commercial product whose active ingredient is azoxystrobin. It is used in agriculture against certain types of fungus. I used it with my dog trying cancer. Nevertheless, after the treatment finished, my dog developed a kidney infection. I cannot, positively, say the azoxystrobin causes the infection, but, just be careful. God bless you...
Posted by Jessica (Port Hueneme, Ca) on 08/31/2015
Baytril killed my cats!
I had two different cats of different ages given Baytril for different reasons. Both of them died 2 weeks after being given the drug. They took the pills for one week. I watched and kept taking them back to the vet. I complained that I knew it was Baytril and was brushed off. With both of their lives ending in a final seizure. Take this drug off the market. I see way to many complaints all over the internet.
Posted by Fiona (London, England) on 06/24/2011
My cat was in a bad way from being overdosed at the vets with drugs. He developed diahrroea with blood in it and after the vets medicine for the diahrroea failed it occured to me to try some Bentonite drink. He took this without resisitance (unlike the vets medicine which we struggled to get into him) and after eating about a teaspoon worth of thick Bentonite mixture (hydrated of course... DO NOT GIVE DRY BENTONITE)he was back to normal the next day thank God
Research the healing effects of edible clay.... It's marvellous stuff. I always have some ready to go (as you must have allowed the Bentonite clay to absorb the water for a minimum of 20 minutes)
All the best,
Posted by Rita (Miami, FL) on 12/17/2014
My cat was killed by Clavamox. My cat seemed to have a hairball he could not expel. On Friday he doesn't eat most of his food but does drink water and can walk and sit up fine. Saturday morning he doesn't want to eat and he feels very warm as if he had a fever. From symptoms I thought he might have a stomach infection from hairball; he could still walk and sit up fine.
His vet gives me Clavamox. I force feed him some food and 1 hour later I give him 1 ml of Clavamox. Soon after he ingests the antibiotic, he vomits the food I had given him and the hairball came out, his temperature goes down, but he seems to become weak, lethargic, and not able to walk well or sit up well. I just thought he had not eaten well and this is why he was like this. He still doesn't want to eat so I force feed him again water, food and Nutrical to keep him from dehydrating every 4 hrs. 12 hours later I give him another 1 ml of antibiotic.
Sunday morning he feels extremely cold to the touch, he doesn't want to eat or drink water, he is severely weak, almost unable to walk and unable to sit up. I don't give him the antibiotic and I start force feeding him food, water, Pedialite, and Nutrical every 2 hrs, and heating up towels and putting them on him to bring up his temperature, but he just gets worse as time passes. He has severely shrunk in size by now, seems to be very dehydrated no matter how much I gave him. I rush him to the emergency vet clinic where he dies.
I later find out in the internet that an allergic reaction to Clavamox makes them vomit and drowsy which were symptoms my cat presented, and Clavamox can also make their muscles weak which my cat also developed. My cat seemed to have had a severe allergic reaction to Clavamox.Be very careful in feeding this antibiotic and if you see any of these symptoms don't wait and rush him to the hospital immediately, it can mean the difference between life and death.
Posted by Sandyb (Shamrock, Tx) on 04/08/2012
My 7 yr old Pembroke Corgi has a history of allergies, bladder stones, and recently, contracted a Staph infection. Culture taken from inside the nose as she was having stuffed nose, crusty skin on outside of nose. Found one sore, very small on right flank. She was not herself, took her to vet, she put her on Clavamox for seven days. She appeared to worsen, took her back, changed her to Baytril and added Doxycycline. Got culture back on nose swab and put her back on Clavamox and to continue with bacterial Doxycycline. She continued to worsen, no appetite, vomiting, fever, white count had not changed, losing weight. Took her back 3/23 and she was given Covenia injection to treat the Staph and was given another round of Doxycycline to take with Covenia. She has continued to decline, no appetite, did not have fever this past Friday when took her back as she suggested she get a B-12 shot to give her some energy. On exam her left eye was completely dialated and did not grow smaller when flashlight instrument went over eye. Also the vomiting still happening about every other day to two days. She said to use Famotidine acid reducer with food to keep acidity down. I had noticed late Friday night her problem with swallowing and she would try to eat some cooked chicken but would quit after a few bites. It was apparent her throat hurt and she would cough and spit up clear slime. After a thorough reading about Doxycycline side effects I believe she now has a possible throat lesion from this med. Also, on the Covenia site it states that Doxycycline: "CONVENIA has been shown in an experimental in vitro system to result in an increase in free concentrations of carprofen, furosemide, doxycycline, and ketoconazole. Concurrent use of these or other drugs that have a high degree of protein-binding (e.g. NSAIDs, propofol, cardiac, anticonvulsant, and behavioral medications) may compete with cefovecin-binding and cause adverse reactions."
I stopped the Doxycycline Friday after she had her am pill. I am waiting to see tomorrow if she is improved at all. This morning she coughed up blood streaked slime.
Please respond to my inquiry as soon as possible. She now only takes chicken broth in a baby med dropper, no solid food at all because of apparent throat pain.
Replied by Sandyb
Replied by Jeanir
Posted by Patrice (Melbourne, Australia) on 01/21/2013
I took my 14yr Border Collie to the Vet for a back problem requiring acupuncture, whilst there the Vet convinced me to try a short five day course of cortisone for her. Within a couple of days she was panting hard and had excessive thirst and hunger, followed by a complete collapse. The Vet diagnosed it as Distibula (an inner ear problem) but my brilliant Natural Therapist, Kinesiologist, Energy worker said it was a stroke, neurological (not an inner ear problem) caused by the cortisone, which had blocked Sally's immune system from working correctly when she had eaten some broccoli that wasn't organic and had been sprayed with pesticides. Her system couldn't cope.
Thanks to the Natural Therapist and Homeopathy Sally made a pretty good recovery.
That's what Cortisone does: blocks one's own immune response to dis-eases, which can then run rampant. and is like fertilizer to cancer.
Replied by Ingrid
Daytona Beach, Florida
Posted by Nancy (Sioux Citiy, Iowa) on 04/09/2009
My young cat Daphne about 1 yr old in 8/08 injured her paw. The veterinarian gave her two cortisone injections a week or two apart. Her injured paw is fine but she now has some sort of skin infection that moves around her jaw, chin, neck, shoulder area that presents itself in thickened skin and scabbiness. It seems to be in one area, then moves from one area to another. The skin where the infection once was will seem perfectly normal for awhile, then this thickening comes back again. She appears healthy otherwise, but she has had this skin problem for well over half a year now. Also she wore a plastic Elizabethan collar for 1 1/2 weeks while her paw healed, due to her excessive licking of her paw. I'm not sure which contributed more to her skin problem, the cortisone or the Elizabethan collar. Before she hurt her paw she was perfect in every way.
Replied by Brenda
San Antonio, Texas
Posted by OTH (Atlanta, GA) on 11/20/2008
My dog was scratching a lot (been a life long scratcher) but otherwise perfectly healthy so I bought him in to the vet one day when I had to bring in my other dog. The vet gave him a cortisone shot and said he may eat, drink and pee a lot. He was fine for the first 24 hours but then had a night of severe vomitting (9 plus times including blood) and was left lying and shaking in pain. He has now been at the vet for 24 hours on an IV and is in the same condition and still won't eat. No one at the vet warned me about these kinds of side effects and we don't know yet what will happen. Wish us luck.
Posted by Amy (Glendale, Arizona) on 09/29/2008
I took my 14 year old cat to the vet because she was limping. The Dr. determined it was her elbow, and gave her a shot of cortisone. My cat stopped eating, and 48 hours later I had to put her down. The cortisone may have brought to light an underlying problem, renal failure. I know she would have shown symptoms eventually, it all just happened so fast.
Posted by Rick (Huntington Beach, Ca ) on 06/13/2008
Cortizone shot: I had 12 year old Lab in healthy condition.Within two weeks he begin vomiting became lethargic. Took him to the vet died two days later.dont know if the cortizone shot weakened his resistance or not. Vet said he died of a bacteria that went toxic.
Replied by Romina
Los Angeles, Ca
Replied by Mountainlady
Replied by Max
Replied by Ariana
Posted by Redragtop (Pocomoke City, Maryland) on 06/30/2014
My beloved 10 year old Siamese cat was in distress from fleas, so I called our local vet for some help. Our Vet was not in, but his nice young associate helped us. He agreed that my baby showed signs of an allergy to fleas, and gave him two Depo-Medrol shots to make him "feel better in a couple of days", and sold me a topical flea medication for "instant relief". This was on Friday afternoon.
On Saturday, my cat stuck to me like glue. I couldn't leave his sight. He wouldn't eat, but I could get him to drink water. At bedtime, I put him in my bed. After several hours, my baby woke me up with a terrible cry, and started with a seizure. He had seizures all night long, and passed at 4:45 Sunday morning.
Now, I find out that Depo can cause kidney failure .... the vet didn't warn me ...... it was supposed to make him feel better .....
Replied by Diamond
Posted by Jim (Renovo, Pa) on 04/24/2011
my lab was given DERAMAXX for swollen toe. after 4 days he got AGGRESSION, DISORIENTATION, STARING OFF INTO SPACE, ENLARGED PUPILS, CIRCLING IN HOME, LACK OF COORDINATION, LETHATGY, FOAMING ON LIPS.
his weight is 75 pds and was given 37 mg per day.
the vet felt it was not the DERAMAXX . He was fine until I gave him this pill. day after I stopped it he is back to about 80% and is peeing and walking .
pupils have returned to normal and he is loving dog he has always been.
folks STAY AWAY FROM DERAMAXX, I know it works on some dogs but I believe if I would not have stopped it after 4th day my lab would be dead. Not blaming the vet but it is not SAFE for every dog. vets feel its like aspirin, ITS NOT AND COULD KILL YOUR DOG.
Replied by Lorant
Posted by Cheyenne (Lakewood, Colorado) on 07/21/2011
I had a cat who died very suddenly at 4 1/2 years of age, he was fine the evening before, dead the next morning. I had a room mate at that time who was on 475 mg effexor and I have seen her drop pills. Would effexor have been deadly if my cat had swallowed one pill? What other causes could there have been for him who was healthy to all of a sudden die?