Heartgard Plus, Iverhart Plus and Tri-Heart Plus use the same amount of ivermectin as Heartgard and Nuhart, to prevent heartworms with the extra benefit of eliminating roundworms and hookworms. The only difference between Heatgard Plus, Iverhart Plus and Tri-Heart Plus is that Heartgard Plus and Iverhart Plus are chewables and Tri-Heart Plus is a tablet.
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 the following heartworm prevention medications; Heartgard, Iverhart and Tri-Heart. Care must be taken to avoid the accidental ingestion of multiple oral heartworm preventative chewables.
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.
Tri-Heart Plus Blue Up to 25 lbs 6.00 (Rx)
Tri-Heart Plus Blue Up to 25 lbs 12.00 (Rx)
Tri-Heart Plus Green 26-50 lbs 6.00 (Rx)
Tri-Heart Plus Green 26-50 lbs 12.00 (Rx)
Tri-Heart Plus Brown 51-100 lbs 6.00 (Rx)
Tri-Heart Plus Brown 51-100 lbs 12.00 (Rx)