Here is a brief summary of what is available from the respective companies:
Revolution (http://www.revolution4dogs.com/):
Easy to apply, quick to dry, REVOLUTION® (selamectin) protects dogs against a variety of common internal and external parasites. REVOLUTION is the first FDA-approved, topically applied medication for dogs 6 weeks and older that:
- Prevents heartworm disease
- Kills adult fleas
- Prevents flea eggs from hatching
- Prevents and controls flea infestations
- Treats and controls ear mites
- Treats and controls sarcoptic mange
- Controls American dog tick infestations
Advantage (http://www.nobiteisright.ca/for-dogs/):
- A monthly topical flea treatment that works on contact so fleas don't have to bite to die.
- Helps prevent Flea Allergy Dermatitis (FAD).
- Remains effective after bathing and swimming.*
- Available from your veterinarian in four different sizes for puppies and dogs.
Advantage Multi (http://animalhealth.bayer.ca/en/dogs/advantagemulti/):
Advantage Multi® for Dogs provides broad-spectrum parasite protection in a convenient monthly application:
- Prevents heartworm disease and treats circulating microfilaria
- Kills adult fleas and treats flea infestations
- Treats and controls common intestinal parasites: roundworms, hookworms and whipworms
- Treats and controls sarcoptic mange
- A monthly topical application that starts to work before fleas and ticks bite, protecting your dog from further infection and pain.
- Controls fleas and all major species of dog ticks within 24 hours.
- Helps prevent heartworm infection in your dog
- Kills heartworm larvae, roundworms and hookworms
- Easy-to-give—most dogs eat it right out of your hand
- Give one each month
- Helps avoid the cost of treating heartworm disease and the risk of possible death from heartworm disease
- Available by prescription from a veterinarian—annual testing for heartworm disease is recommended
- Once monthly oral chew. It contains an ingredient, afoxolaner that helps treat and control fleas and ticks and keeps killing for a full 30 days.
We recommend treating for ticks and fleas monthly from April through October /- July and August. Heartworm prevention should occur monthly from June 1st to November 1st.