Puppy has worms in stool. What OTC dewormer is best for him?

Typically tapeworms can be treated with anybody worming medication that contains praziquantel . However this could just be a side effect of the poop sitting out and insects laying eggs on the poop. Deworming should not harm your dog.

Typically, the only type of worms that can be seen in a dog's feces are roundworms and tapeworms. Medications that kill tapeworms are available only from the vet, and do require a visit. While there are OTC deworming treatments, they don't kill tapeworms, so you could be treating Chato but not killing the worms in his system. I would recommend taking him into the vet for an exam. He should get Drontal, which kills the four types of worms that infect dogs: Tapeworms, roundworms, whipworms, and hookworms. If paying for a vet is an issue, you can see if your vet accepts payment plans, if there is a low cost clinic in your area, or you can apply for Care Credit online. There is also an organization called Red Rover that give grants for treatment of sick animals, and you can see if you qualify for one of their grants. http://www.humanesociety.org/animals/resources/tips/trouble_affording_pet.html?credit=web_id91754962 https://www.redrover.org https://www.carecredit.com

You can get her an OTC deworming treatment called Panacur. Keep in mind that it doesn't kill tapeworms, which requires a prescription medication called prazaquantel. You will have to get that medication (I recommend Drontal) from a vet, but you can give Penelope Panacur.

It could be that Roscoe has tapeworms, which requires praziquantel to treat. I'd see if the deworming medication you gave him contains praziquantel; if it does not, that's why he's still pooping out the worms. Drontal is an excellent deworming medication that contains praziquantel, and you can get it from your vet. Give him a dose as soon as you get it, then another in two weeks to kill all the worms. If the medication does contain praziquantel, give him another dose of the deworming treatment two weeks after the first. Because of the life cycle of intestinal worms, two treatments given two weeks apart are needed to kill all the worms. Best of luck, I hope this helps!

Looks like roundworms. There are many OTC dewormers that should work just fine. You can look for one that contains Pyrantel. It is still a good idea to have a vet diagnose what worms or other intestinal parasites are present. And Cujo will need re-treatment in 3 weeks to kill adults that hatch from eggs in the intestines right now. Here is a good product: https://www.petco.com/shop/en/petcostore/product/8-in-1-safe-guard-4-canine-dewormer?bvstate=pg:2/ct:r

You can't visually tell the difference between hookworms and roundworms. Thankfully, treatment is similar. You can use an OTC dewormer like the one linked below. Make sure to follow the label directions and repeat in 3-4 weeks to completely clear the worms. https://www.petsmart.com/dog/dental-care-and-wellness/treatments/sentry-worm-x-plus-7-way-broad-spectrum-dog-de-wormer---2-pack-13328.html

Yes you can buy dewormer over the counter at any pet store or feed store. You will want to get one that is labeled for tapeworms also which will include praziquantel as an ingredient. Tapeworms are the most common at his age and look like small grains of rice. They get these from eating a flea, so you may need to look for flea control