After receiving deworming medications, it's common for cats to suffer from diarrhea. It's also common to find worms in cats' stool. You may notice bloody stool. These symptoms usually.
2 Answers. Well it is due to dosage of medicine you have given to your cat because 4 year old kitten have sensitive stomach and you should give him less quantity. Too much can make it.
Sometimes cats are sick after taking worming treatments or other medication. If your cat is sick immediately after worming, it is probable that the worming treatment will not have been.
A deworming product that was once popular had side effects that caused great concern in the veterinary community. They included facial swelling, rashes, difficulty breathing, autoimmune.