Heartworm is a very dangerous parasite that can be fatal for cats & dogs. In addition, it can be challenging to treat once established, so you must add heartworm preventative as a part of your pet's treatment routine.
Your pet will get transmitted when mosquitoes bite insects; cats & dogs can be infected without contacting any other animals, although they are only indoor pets.
Multiple heartworms preventative are available in the market, so choosing the right product for your pet is very important. Here we have prepared a comparison chart of the significant heartworm-preventative brand to help make your option easier to understand.
| Brand | For | Active Ingredient(S)/ Application | Prevents Heartworm | Prevents Roundworms | Prevents Hookworms | Prevents Whipworms | Prevents Tapeworms | Safe for Pregnant or Nursing Pets | 
| Dogs & Cats |   |   |   |   |  |  | ||
| Dogs | 
Ivermectin, Pyrantel, Pamoate Monthly; Beef-flavored chewable |   |   |   |  |  |   | |
|  | Dogs & Cats | 
Milbemycin Oxime Monthly; Beef-flavored tablet |   |   |   |   |  |   | 
|  | Dogs |   |   |   |   |   |   | |
| Dogs & Cats | 
Selamectin Monthly; Topical |   |   Cats Only |   Cats Only |   |   |   | |
|  | Dogs |   |   |   |   |   |   | |
| Dogs |   |   |   |   |   |   | ||
|  | Dogs | 
Ivermectin, Pyrantel Monthly; Beef-flavored chewable tablets |   |   |   |   |   |   | 
|  | Dogs | Spinosad, Milbemycin Oxime Monthly; Beef-flavored tablet |   |   |   |   |   |   | 
 
                      
                    



 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
