How long does it take for a cat to react after taking the deworming medicine? After cats take deworming medicine, they usually have a reaction time of 2-3 days. After the cat takes oral antiworming medicine, it is necessary to observe whether there are adverse reactions.
If there are insects in the cat's body, the cat will usually get the insects in one to two days after taking the deworming medicine. It takes some time to absorb the medicine after entering the cat's body, so it may be defecated that night or the next day.
Cats who have just started to deworm their bodies may have some stress reactions, such as mild vomiting and diarrhea, mental loss, and worm-pulling and vomiting. There are also some cats who are very healthy and therefore will not have any abnormal reactions. If the cat vomits worsen or still vomits after 2 days, it is recommended to take the cat to the pet hospital immediately and inject an anti-emetic needle to prevent ejaculation.