My cat vomited a roundworm. Should I use Panacur? How often to deworm?

Poor kitty. Typically most pets require a second deworming 2 weeks after the 1st to treat for re-emergence of worms because of their life cycle, so yes it is appropriate to deworm Molly at this time. Pyrantel palmoate or Fenbendazole are typicallly used. This should clear things up for good, as long as she doesn't get re-infected from exposure to the outside. Keeping her on a monthly flea preventative like Revolution can also help prevent re-infection because it contains an intestinal dewormer in it as well.

From the picture you provided, it looks like Lucy could have roundworms. I recommend giving her either Panacur or Drontal. Both kill roundworms, hookworms, and whipworms, and Drontal will also kill tapeworms. You can get both from your vet's office. As with last time, you should get her one deworming treatment now and then another two weeks later. At that, in order to keep the worms away, she will need to be dewormed every three months. I hope this helps!

If you are seeing worms that look like rice, those are tapeworm segments. Panacur can kill some types of tapeworm, but the best drug for it is praziquantel. That is a prescription only drug, and a great brand that contains praziquantel is Drontal. You can try the Panacur, but you may have to go back to your vet to get Drontal. As long as you practice good hygiene (wash your hands after petting him, wash your hands after cleaning his litter box), you should be fine. I hope this helps!

Thank you for the picture, it's very helpful. That looks like a roundworm. Jessie needs a deworming treatment, I recommend Drontal or Panacur. Give her a dose of Drontal or Panacur now, then another in two weeks. After that, she should get the medication once a month to prevent further issues with worms. I hope this helps!

If it happened that long after eating, it may or may not have been associated with the medication. I would try it again today, and if she vomits again, then stop the medication until you can speak with your veterinarian. Either way, call your veterinarian once they are open as she may need an additional day of medication if she tolerates it.

Yes - a wormer designed for roundworms is the best option. Be sure to follow all directions as regards minimum age for use (some should not be used before 9weeks etc), correct species and weight and to repeat treatment at the correct frequency. If she is vomiting frequently, a spot on medication may be more useful to ensure she does not vomit the oral treatment before it has time to work. Your vets office can advise on the most appropriate product available in your area

That looks like a roundworm. You need to deworm a cat every two weeks when they have worms due to the life cycle of the worm. The deworming treatment will not kill eggs. So the first treatment kills the adult worms present while the second one kills the worms that had not yet hatched at the time of the first deworming. Give Max a deworming treatment now, another in two weeks, and then another two weeks after that to be safe.