Iverhart Max uses the same Active Ingredients that are used in Heartgard Plus, Tri-Heart Plus and Iverhart Plus; ivermectin (to prevent heartworm disease) and pyrental (to control and treat roundworms and hookworms). Iverhart Max is different due to the added Active Ingredient praziquantel, which controls and treats tapeworms.
Ivermectin has been proven to interfere with the development of the heartworm larvae, which take 6 to 7 months to develop inside your pet. It is recommended to start heartworm treatment before your dog is 6 months of age.
Give your pet heartworm preventative year-round or during the mosquito season. Keep an eye on the temperature; the heartworm larva requires approximatly 2 weeks of daily temperatures at or above 80 degrees Fahrenheit to develop inside the mosquito before your pet can become infected. The larvae stop developing when temperatures fall below 57 degrees Fahrenheit. Make sure you don’t have any mosquitoes in the house, where temperatures are usually higher year-round.
Signs & Symptoms of Heartworm Disease; coughing (with or without blood), weight loss, fainting, congested heart failure.
CAUTION – Dogs and cats, older than 6 months of age, should be tested for an existing heartworm infection prior to administering any heartworm preventative. While some microfilariae may be killed by ivermectin, the safe amount found in heartworm preventatives, is not effective in eliminating all microfilariae found in your dog or cat’s system. These products are not effective against adult heartworms.
CAUTION – Although side-effects are rare, caution should be taken when giving ivermectin to the following breeds; Collies, Border Collies, Australian Shepherds, Shetland Sheepdogs, Old English Sheepdogs. These breeds have a “mutant” gene (MDR1) that prevents the complete metabolization of ivermectin. This can lead to this drug reaching toxic levels in the brain.
Collies and Collie mixed breeds tolerate a dose 10 times greater than the recommended amount of ivermectin (generated by streptomyces avermitilis) used in heartworm prevention medications. Care must be taken to avoid the accidental ingestion of multiple oral heartworm preventative chewables.
Tapeworms – Some tapeworms are considered zoonotic; contamination can occur between humans and animals. The tapeworm can be found in the digestive tract, where it usually doesn’t cause any symptoms. Although some people and animals can suffer from upper abdominal discomfort, diarrhea and loss of appetite. Your dog or cat can become infected after eating infected rabbits or rodents or after ingesting an infected flea during grooming. Humans can become infected after eating undercooked meat (pork, beef or fish) or from contaminated soil.
CAUTION – There is always a risk of developing parasite resistance to a parasite preventative when used for a long period of time. It is recommend that fecal tests are run once or twice a year to determine the efficacy of the product.
CAUTION – Even though Iverhart Max Purple is labled for use in dogs weighing between 6 and 12 lbs. The package insert cautions the use of this product in dogs weighing less than 10 lbs.