While D-Worm Tasty Paste from Farnam is strong enough to take care of large roundworms, it's safe enough to work on puppies. Roundworms attack the intestines and the lungs, putting your dog in grave danger. Available in a 13g graduated syringe, the beef flavored formula is easy to administer to your pet. 

For dogs under 1 year, you should administer once every couple months. For older dogs, apply as necessary. See packaging for details and more instructions on proper use. Each tube will treat up to 90 pounds of body weight - either a few small dogs or one large dog. This makes the product perfect for a small litter of puppies. 

D-Worm Tasty Paste  Quick Stats:

• Active Ingredient: piperazine 
• Safe wormer to use on puppies and adult dogs.
• Possible Side-Effects: nausea or muscular tremors  (seen in a small number of animals - if your pet experiences this, discontinue use and contact your vet.)
• Do not use on sick dogs
• Easily add to food or administer directly.

While this is a good solution, it should be part of an overall health plan for your pet. You should consult with your veterinarian for help in the diagnosis, treatment and continual control of parasitism - a serious problems for pets. Also, make sure you read all of the instructions on the packaging. If you are looking for a simple wormer that works and is safe, D-Worm Tasty Paste is a good choice.