Heartgard for Dogs 51-100, 26-50 and 25 lbs: Preventing Heartgard Overdose

Some dog owners are already aware of conducting preventative method to prevent heartworm disease in their dogs. However,  many of them (and probably you) still don’t understand how to administer the medication properly as to avoid medication overdose. I also find people searching some information about Heartgard for dogs 51-100 lbs or the right Heartgard dosage for dogs or how to prevent Heartgard for dogs overdose through the internet. Unfortunately, I found there was very little information about it. This article is trying to provide the answers and solution for these issues.

Up to now, there are three kinds of Heartgard for dogs: the blue, green and brown package. Produced by Merial, these three different packages offer precisely the same dose per milligram of the active ingredient, Ivermectin, which works as the heartworm treatment against the heartworm disease. So basically, they offer the same medication for your dog to prevent heartworm. Then, how do they differ?

The brown package is used for dogs weighing between 51 – 100 lbs. Usually, people just call it Heartgard for dogs 51-100. The Ivermectin content of this package is 272 mcg.

The green package is used for dogs weighing between 26 to 50 lbs (Heartgard for dogs 26-50). The Ivermectin content of this green package is 136 mcg.

The blue package is used for dogs weighing up to 25 lbs. The Ivermectin content of this package is only 68 mcg.

To give you a clearer picture of how these packages differ, please take a look at the table below:

Dog Weight Chewables Per Month Ivermectin Content Color Coding on Foil Backing and Carton
Up to 25 lbs 1 68 mg Blue
26 to 50 lbs 1 136 mg Green
51 to 100 lbs 1 272 mg Brown

You see that all Heartgard medications are offered in different size of dosage. How much the need of the medication is dependent on the weight of the dog. As a dog owner, what you need to do is to ensure that you administer the right dosage for your dog. Giving a wrong dosage of Heartgard may put your dog in jeopardy. Simply put, it can be very fatal. Practically speaking, Heartgard medication overdose takes place when you give the dog an amount of medication which is more than the quantities recommended. Actually, we can prevent medication overdose by performing some uncomplicated practices.

When you are trying to select the right Heartgard for dogs, examine the product label and then read the note there. You will find the information about appropriate dosage to give in accordance with the dog’s weight. Or, you can just see the table I provide above. The proper dose is once again depends on how your dog weighs. Of course, the bigger the dog, the more dosage she will need. At this point, you should have known your dog’s weight and thus determine the appropriate Heartgard dosage for her. Additionally, prior to administering the Heartgard to your dog, you also need to read and completely understand all instructions available in the product label.

You may ask, “What if my dog’s weight is more than 100 lbs? Is there any Heartgard for dogs weighing more than 100 lbs. No, there is not. However, you can give dogs over 100 lbs the appropriate combination of the packages. For instance, if the dog is 134 lbs, you can give one chewable tablet of Heartgard for dogs 51-100 lbs plus Heartgard for dogs 25-50 lbs at the same time. So you make an appropriate combination of brown package and green package. It’s that simple.

You, as the dog owner, also need to do your own research. You can use the internet. There is a lot of relevant information related to preventative medications that work against heartworm disease. Take some notes if you find some necessary details and utilize them when you need to choose and use the product for your dog. This way, you will surely have a peace of mind, realizing that you know what you are doing, giving the right dosage for your canine.

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