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However it came to be- Whats going to happen now that you accidentally gave your dog 2 (or more) doses of Heartgard? No, giving your dog 2 doses of heartgard will not necessarily harm her. That said, you should always ensure you give this medication to your canine as per its prescription. Do Men Still Wear Button Holes At Weddings? No material on this site is intended to be a substitute for professional veterinary advice, food recommendation, diagnosis, or treatment. It wont make the medication any more effective than if you give it in proper amounts, and it is always best to follow medication dosage guidelines in case your dog does have extra sensitivity to the drug. Dogs may also experience a loss of appetite and a higher frequency of diarrhea and vomiting for the next 24 hours as parasites are eliminated from the body. Contact your veterinarian as soon as possible if you believe your dog has ingested more than the recommended dose of Interceptor Plus. Heartgard plus, also known as ivermectin or pyrantel, is a pharmaceutical drug that requires a prescription and veterinary approval for its usage. (Just a note that mathematics is not my strong suit: Though I am quite certain the numbers are correct, the overall point Im trying to get across is that it takes an EXAGGERATED amount of Heartgard tablets for an overdose to occur.). How often do you give your dog Interceptor PLUS? By checking with the vet you will be able to confirm your dogs weight at the time of the checkup, from which you will then be able to determine a margin of safety for the medication. Tips and Tricks, Can a dog digest a washcloth? Expert Advice, Can I drain my dogs abscess? These side effects can include vomiting, diarrhea, lethargy, and in serious cases seizures and allergic reactions. every 30 days. How do you get rid of Cuban frogs in Florida. Heartgard Plus contains Ivermectin and Pyrantel Pamoate as its active ingredients. In addition to working as a practicing veterinarian, she has written numerous animal care courses, as well as articles and eBooks on pet health and training. Both can lead to consequences that affect your pet in a very negative way, so its important to know what to do if you cant remember whether you gave your dog its pills or not! What happens if dog eats too much Interceptor? Collies, in particular, are a special case. How long do side effects of Interceptor Plus last? When overdosed, ivermectin can negatively affect the dogs central nervous system and impede nerve transference. So, if Ellie Mae weights 11.5lbs that's the same as 5.2kg. In dogs, Interceptor also controls hookworms, and treats and controls roundworms, and whipworms. You will be very glad to learn that it is actually very difficult for a dog to overdose on Heartgard due to its overall safety as a product. Milbemycin is given by mouth with a flavored oral tablet. If you do end up buying something by clicking the links on my site, I may receive a tiny amount of commission from the big guys. Also, remember that the consequences of acquiring a heartworm infection are devastating. Can I Give My Dog A Lower Dose Of Heartgard? Anyway, before we adopted him he was overweight so he was on the 51-100lb Heartguard. Typical symptoms include: If your dog displays any of the above symptoms, especially after an overdose of heartworm medication, contact the vet immediately. Learn the warning signs of a possible toxic reaction and immediately seek veterinary care if you see indicators that y, How to Identify and Treat Flea Bites on Humans & Dogs, If you notice tiny red bites on yourself or your pet, you may wonder what the culprit could be. Thus, the same 10-kg dog would need to eat around 147 tablets for an overdose to occur. For INTERCEPTOR PLUS the maximum exposure based on product dosing is 2.5 mg/kg for milbemycin oxime and 25.1 mg/kg for praziquantel, which is higher than the minimum effective dose used in the safety studies for milbemycin oxime (see below). A Complete Guide, Why does my dog suddenly want to play all the time? Several breeds have a hereditary sensitivity to ivermectin, but the following breeds are the most commonly affected: A mutation in the MDR1 gene is responsible for this genetic susceptibility. . There are two major instances that can lead to your canine overdosing on medication. What about heartgard, can you overdose a dog on heartgard? A small dog is given a tablet meant to treat a large dog. Simple and Effective Tips, Do dogs prefer elevated beds? This heartworm prevention contains milbemycin oxime. Ideally, you will of course want to give your dog just the right amount of Heartgard! That said, it is always advisable to seek advice from a professional, such as a vet, to know how and when and what quantities you should administer this drug when it comes to your canine. Tremors or seizures. The following is a list of the most common Interceptor Plus side effects reported by dog owners and veterinarians: Vomiting. Interceptor is a monthly medication for the prevention of heartworms in dogs and cats, containing the active ingredient milbemycin oxime. Some dogs are also naturally predisposed to experiencing reactions after ingesting heartworm medication- most commonly herding breeds like Collies and Heelers. for any potential poisoning to arise. All medications carry potential side effects, and an overdose is always undesirable. Check to make sure that the chewable has not expired, and remove from packaging. Ivermectin is a chemical compound that is originally derived from fermentation processes of organisms that reside in the earth and soil. Save my name, email, and website in this browser for the next time I comment. Even still, adverse symptoms are rare and most frequently occur only when an overdose has taken place. The signs of ivermectin toxicity can be acute or mild. First and foremost we can safely conclude that administering 2 doses of heartgard plus to your canine is in no way lethal. Two of those parasites, roundworms and hookworms are zoonotic, meaning they can be spread from pets to people, usually children and adults or elderly with compromised immune systems. Making a dog throw up medication will only work if less than 2 hours have passed, as after that the ivermectin will already have made its way into the bloodstream. In cats, Interceptor also treats roundworms and hookworms. This ingredient works to break the life cycle of fleas. Rosemary oil can be effective in preventing flea infestations, but it has some limitations. 7 Menacing Facts If My Dog Ate, Can Dogs Eat Ramen Noodles? Heartgard contains two active ingredients: Ivermectin and pyrantel pamoate. Safety of Interceptor in heartworm positive cats is unknown. 1 Remove 1 Tasty Chewable from its Packaging Check to make sure that the chewable has not expired, and remove from packaging. Younger dogs are also generally more susceptible than adult canines to the side effects of medications and overdoses. What if I accidentally gave my dog two Nexgard? She is committed to learning about the internal workings of animals. What Should I Do If I Cant Remember If I Gave My Dog Heartworm Medicine? No vet writer or qualified reviewer has received any compensation from the manufacturer of the medication as part of creating this article. As Parasitipedia explains, in overdose situations, these drugs interfere with nerve transmission and cause the central nervous system to respond abnormally to stimulation. As listed above, there is a wide safety margin for heartworm products. Crisis! Despite the fact the heartworm pill is given monthly to dogs, the heartworm drug stays in a dogs system for about 24 hours, explains veterinarian Dr. Z. Yes. Is It Dangerous If I Gave My Dog A Heartworm Pill Early? At the same time, it wont make prevention more or less effective either. You may be surprised to still see live worms in your dogs feces after worming them, but this is normal. Interceptor Plus has been demonstrated to be safe in healthy dogs when given according to labeled directions. What Should I Do If My Dog Ate Too Much Heartgard? I write about my passion and personal experience caring for multiple pets in this blog! Additionally, the vet may also perform tests to examine the condition of your dog, such as: In some serious cases, recovery can be very slow and take weeks- or even months. However, consult your vet first before giving the extra dose, and if your dog does display symptoms of diarrhea, vomiting or lethargy, take it to the animal hospital immediately for an examination. It depends on the amount given. in other medications to combat tough parasites such as demodectic and sarcoptic mange. Individual dogs of the above-mentioned breeds do not all possess the mutant gene. When it is somehow overdosed, signs of pyrantel pamoate poisoning can include: Heartgard is a very safe product, and even if you give your dog a higher dose it most likely wont cause any health issues. Individual dogs of the above-mentioned breeds do not all possess the mutant gene. The following adverse reactions have been reported following the use of INTERCEPTOR: Depression/lethargy, vomiting, ataxia, anorexia, diarrhea, convulsions, weakness and hypersalivation. No, two doses of heartgard is not toxic to your canine. Designate only one person in your household to hold the responsibility of giving your dog its heartworm medication. The practical worst case scenario that can occur if your dog took two doses of heartgard is your dog will experience a series of loose stools for a limited amount of time. Acute symptoms can occur within 4 to 12 hours of ingestion, while milder symptoms may become apparent over 2 or 3 days. Considering that ivermectin is the predominant ingredient in heartgard, if I accidentally gave my dog 2 doses heartgard, could it be lethal to her? Rest assured: It wont be dangerous if you give your dog a Heartgard pill early, whether intentionally or by accident. Her goal is to educate and uplift readers who also have a passion for animals through her writing. Heres What to Expect, Why do dogs ask for belly rubs? Other specific monitoring or routine testing while your pet is on this medication may be recommended by your veterinarian, depending on your pet's individual needs. Interceptor Plus is a tasty chicken-flavored tablet, and Heartgard Plus is a delicious, soft, beef-flavored chew. Just make sure they consume the whole dose. If you notice anything unusual, contact your veterinarian. Fortunately, these medications carry a wide safety margin. what if i give my dog two doses of interceptor. Furthermore, some dogs are naturally hypersensitive to this drug. rather than to swallow without chewing. Thus, First discovered on a Japanese golf course, 1.1% of administered doses according to studies, How are illness detection dogs trained? Plain yogurt is another good food that can mask medication. Interceptor is safe for use in lactating dogs, while Heartgard Plus has not been proven safe for nursing mother dogs. Resume your normal monthly dosing schedule. how do cert volunteers prepare for disasters quizlet; nuclear targets by state; capital dance playlist now; joe toussaint parents; mike dunleavy sr net worth However, since heartgard is a prescription drug, it is better to administer it to your dog as per the stipulated guidelines to be on the safe side. No, giving your dog 2 doses of heartgard will not necessarily harm her. Dogs can safely be administered up to 14.5mg of pyrantel pamoate per kilogram of body weight. Stepping with legs lifted too high (Goose-stepping), Hypersensitivity to sudden touch or noises, Pancreas, liver, and kidney chemistry tests to determine function and sugar levels, Electrolyte tests to make sure there is no dehydration or imbalances, Blood cell count to rule out blood-related disorders. It stops developing flea larvae and eggs, but it does not eliminate existing flea infestations. It can take a few hours of digestion before the active ingredients ivermectin and pyrantel pamoate provide relief against heartworms. Putting this into consideration, is there cause for concern if I. Itching or rash. However, it is recommended that you always administer heartgard in adherence to its instructions since it is a prescription drug. Furthermore, some dogs are allergic to the medication, therefore, when it comes to this dogs, ivermectin can directly go to the brain and cause toxicity or even death. Various signs can present themselves after an overdose depending on the medication in question. Contact the vet as soon as you suspect your dog may have overdosed. Welcome to Learn About Pet. The good news is that Nexgard is a very safe drug. 2023 Joy Pet Products. in other medications to combat tough parasites such as demodectic and sarcoptic mange. Can I Give My Dog A Higher Dose Of Heartgard? She has a connection with animals since she was a child. Toxicitycan occur if a dog is given an excessive dose of the medication (10 to 20 times the recommended dose). Heartworm disease can lead to fatal consequences something you definitely do not want to encounter. Testing is the only technique to determine whether a dog possesses the mutant MDR1 gene. can this be toxic for him? Arguably, the most notable difference between these products is that Interceptor Plus contains a second active ingredient Praziquantel. Some Collies have a genetic mutation which makes their brain more vulnerable to the effects of ivermectin medications. Final Verdict Accidentally Gave My Dog 2 Doses Heartgard, Can You Give Heartgard And Nexgard On Same Day? The medication comes in a beef flavored chew and is generally well tolerated by dogs. Several breeds have a hereditary sensitivity to ivermectin, but the following breeds are the most commonly affected: A mutation in the MDR1 gene is responsible for this genetic susceptibility. Learn more about heartworm medicine for dogs. Speaking of heartworm medicine, I remember an instance where I gave my dog heartworm medicine too soon. Can my dog still get worms while on interceptor? EMMY NOMINATIONS 2022: Outstanding Limited Or Anthology Series, EMMY NOMINATIONS 2022: Outstanding Lead Actress In A Comedy Series, EMMY NOMINATIONS 2022: Outstanding Supporting Actor In A Comedy Series, EMMY NOMINATIONS 2022: Outstanding Lead Actress In A Limited Or Anthology Series Or Movie, EMMY NOMINATIONS 2022: Outstanding Lead Actor In A Limited Or Anthology Series Or Movie. My dog ate 2 interceptor plus. Therefore, it is advised to take the dog to the vet immediately if they have ingested a large amount of heartworm medication. Below are the major indications that your canine has overdosed on a medication;- Vomiting Drooling or excessive salivation Weakness Lack of coordination Tremors Disorientation Frequent urination Excessive thirst Agitation Irregular heartbeat (very rapid or too slow) Low blood pressure Pale mucous membranes Lethargy Depressed breathing Seizures Watch the dog closely following dosing to be sure the entire dose has been consumed. There is no antidote for ivermectin poisoning, but the vet may still be able to provide supportive treatment by administering medications or substances (such as activated charcoal) to limit further absorption. What Health Symptoms To Look Out For Overdose in Dogs? Yes. Lets understand in detail what heartgard is, how heartgard helps dogs when taken in moderation with Vet advice and what can happen on heartgard overdose for dogs. Other than that, simply carry on as normal and make sure that you give the next monthly dose on time! Dogs may also experience a loss of appetite and a higher frequency of diarrhea and vomiting for the next 24 hours as parasites are eliminated from the body. As we have learned, two doses of heartgard are not harmful to your dog. First discovered on a Japanese golf course, it is now used in heartworm medications such as Heartgard and Iverhart to kill heartworms at the larval stage when they havent yet matured and migrated into the arteries of the lungs. What if I already accidentally gave my dog 2 doses heartgard, should I be concerned? Ways to Use Rosemary to Repel Fleas on Your Dog. Your dog licks off a topical spot-on product, which delivers a higher dose than if it is absorbed as intended through the skin. what if i give my dog two doses of interceptor how did the crusades contribute to the age of exploration June 10, 2022. university of the pacific financial aid deadline 7:32 am 7:32 am These cases have a compartment for each day of the week. Explaining This Behavior. It's a once-monthly, tasty chew, flavored with real chicken that's approved for dogs and puppies 6 weeks or older and 2 pounds or greater. Plumbs Veterinary Drug Formulary suggests signs of toxicity are most likely to occur with doses in excess of 1 milligram per kilogram of body weight (equivalent to 1,000 micrograms per kg of body weight). I gave my dog the wrong dose of NexGard. After your dog has taken the chewable, observe your pet for a few minutes to ensure that no part of the dose is lost or rejected. There are very few side effects when the drug is given at the normal dose, but monitor your pet for vomiting, diarrhea, depression/lethargy, ataxia, anorexia, convulsions, weakness and salivation. If you have already dosed the dog before realizing the error, contact the vet as you would for a suspected overdose and follow their advice. The following adverse reactions have been reported in dogs after administration of milbemycin oxime or praziquantel: vomiting, diarrhea, decreased activity, incoordination, weight loss, convulsions, weakness, and salivation. If you follow this regiment to the latter when administering heartgard to your canine, your canine will be protected from heartworms and hookworms. Some Collies have a genetic mutation which makes their brain more vulnerable to the effects of ivermectin medications. What happens if a dog takes two heartworm pills? You can also change the names of the days to months by covering them with a sticker. In the event you are not certain whether or not you gave your canine heartworm medication, give the dose you are unsure of immediately since 2 doses cannot hurt your dog anyway. proper dosage of 2.72mcg per pound of body weight, dosage of 2.27mcg per pound of body weight. Luckily, you can help them stop this behavior. While this can be an unpleasant image, its actually a good thing it means the worms are no longer living inside your dog! After doing that ensure that you remember administering the medication as prescribed. Can you cut a Trifexis chew in half? The way praziquantel works against intestinal parasites is unclear, but it is believed to interfere with the worms' muscle integrity and cause paralysis. While accidents can and do happen, there are tips you can use to avoid overdosing your dog. Can you switch from Heartgard to Interceptor? (9 Interesting Facts), Dog Swallowed Raw Chicken Wing Whole : 7 Clear Tips, My Dog Ate A 1mg Klonopin, Is He Safe? Not only is ivermectin used in tiny doses to kill heartworms in a dogs body, it is also used in much higher concentrations (think 50-60x!) Can a dog overdose on heartworm medication? Dogs over 100 lbs. However, consult your vet first before giving the extra dose, and if your dog does display symptoms of diarrhea, vomiting or lethargy, take it to the animal hospital immediately for an examination. 8 to 25 lbs. It works by paralyzing and killing worms in the stomach and intestines, and renders them unable to attach themselves to intestinal walls- resulting in expulsion in the feces. Which Teeth Are Normally Considered Anodontia? What if I give my dog 2 doses of heartgard? When taken in excess, sensitive canines can be intolerant to tri heart plus medication. If your dog weighs 115 lbs, you need to give a big dog size and a yorkie size pill at the same time. What happens if I give my dog two doses of Bravecto? By Dog Expert March 8, 2022 Dogs FAQ. 11.19.2021. When products are dispensed, there is always the slim possibility of human error, and there may have been a simple mistake (such as picking the wrong sized pack off the shelf). Yes, apart from experiencing the bouts of loose stools that usually will pass on their own, your canine will generally be fine. An overdose can either be accidental or intentional. Although it isnt necessary, you can give your canine 2 two of heartgard safely. If its a situation where you have truly forgotten whether you have given your dog Heartgard this month (see below section), then the truth is that it may be safer to give it a potential extra dose of Heartgard than to miss a dose. bruce and therese morpeth net worth / companion pass westjet / companion pass westjet This will allow you to make an informed decision on whether you can give your dog a heartworm pill soon, or whether you should wait for a while. Your vet is always the best source of information pertaining to your specific circumstances and the information below is provided for general interest only. Can NexGard or NexGard SPECTRA chews be split so I can dose more than one dog? Interceptor Plus is given once monthly for the prevention of heartworm and intestinal parasites. From time to time I like to recommend products in my posts that I feel may truly be helpful to readers and their pets. Symptoms can. How long can you go between Heartgard doses? Your pets condition worsens or does not improve with treatment, You have additional questions or concerns about the use of Interceptor or Interceptor Plus. what if i give my dog two doses of interceptor. Most phones have settings you can toggle that will allow you to set an alarm or reminder for the same date of every month. However, it is recommended that you administer this medication to your dog as per its instructions since it is a prescription drug. Interceptor Plus contains two active ingredients, milbemycin oxime and praziquantel. A Step-by-Step Guide, What are my rights if I get bit by a dog? Contrast this with the recommended dosage of Interceptor for control of heartworm and intestinal parasites: 0.23 mg milbemycin oxime per pound (0.5 mg/kg) of body weight. Interceptor is a monthly medication for the prevention of heartworms in dogs and cats, containing the active ingredient milbemycin oxime. It is also extremely helpful to salvage (as much of) the packaging as possible, so that you can take it to any potential vet visit. Pippa is professional writer and veterinarian. In safety studies, BRAVECTO was tested in healthy dogs and puppies at up to 5 times the recommended dose at 8-week intervals for 3 treatments. Yes, if you give your dog heartgard 10 to 20 times above the recommended dosage, it may cause your canine to become toxic or even die. If this happens, do NOT give your dog two doses at once-skip the missed dose and continue with . What are the side effects of interceptor for dogs? However, we do not expect a difference in the effectiveness of the product if your dog consumes it whole. 914 Satisfied Customers. LisaQ102. Heartworm Medications Overdose Signs (and Ways to Avoid It). By overloading chloride into these worms, it affects the electrical activity within their nervous system, causing muscle paralysis and death. If there is an obvious mistake, such as if a small dog has been supplied with a large dog medication, contact the veterinary clinic. Her work permits her to work closely with knowledgeable vets and obtain practical expertise in animal care. Because the medication will have some residual action if the dog has an overdose, contact the vet as you would if an overdose of an in-date medication had been given, and proceed accordingly. Interceptor Plus prevents heartworm disease and treats and controls adult roundworm, hookworm, whipworm, and tapeworm infections in dogs and puppies 6 weeks or older and 2 pounds or greater. Interceptor Plus is an FDA-approved dog medication that protects your dogs from five dangerous (and potentially fatal) internal parasites: heartworms, roundworms, whipworms, hookworms, and tapeworms. INTERCEPTOR PLUS may be administered year-round without interruption. The first thing you should do in a situation where your dog has eaten heartworm medication (or any other type of medication, like Melatonin or Excedrin) is to establish exactly how much was eaten! Some of the most common adverse effects include tremors, vomiting, diarrhea, and bloody diarrhea. What happens if a dog eats too much Interceptor? Interceptor is intended for dogs and puppies weighing more than 2 pounds and older than 4 weeks of age. Can you give Interceptor Plus and Bravecto at the same time? Get text or email reminders when its time to give your dog each monthly dose, or refill their Interceptor Plus prescription. You can also easily keep track of your pet's medication by marking your calendar each time you give them a dose. Interceptor Plus is a monthly chicken-flavored oral chewable tablet that ensures that your dog is safe, happy, and healthy. Interceptor Plus prevents heartworm disease and treats and controls adult roundworm, hookworm, whipworm, and tapeworm infections in dogs and puppies 6 weeks or older and 2 pounds or greater. If you administer heartgard to your canine 10 to 20 times above the recommended dosage, this is considered as heartgard overdose.. Should I therefore get concerned if I accidentally gave my dog 2 doses heartgard. Dogs may be sedated for much of the time, or may be otherwise recumbent, in a coma, or be unable to eat or drink. As a chewable, it's best to administer Interceptor Plus in a manner that encourages your dog to chew, This helps the vet understand which size tablets the dog ate, and will enable your vet to do a calculation and see if the dog has eaten a toxic dose. There is no need for major concern in case you accidentally administer two doses of heartgard plus to your canine. There is no cause for alarm if you happen to administer two doses of heartgard to your canine by mistake. The worst thats realistically likely to happen if your dog ate two doses of Heartgard is a temporary bout of loose stools. To perform the test, cells from inside the dogs cheek are scraped and sent to a lab for genetic analysis. Using out-of-date medication means there is a risk the dog was not protected and may have picked up heartworm in the interim. Although it isnt necessary, you can give your canine 2 two of heartgard safely. Finding the right dosage is a first step in making sure that your dog's worm protection is effective. B.Sc 1st Sem Electrical Appliances Questions, BA 1st Sem Economics Questions and Answers. Therefore, no adverse effects are expected if dogs are inadvertently treated twice with the recommended dose within 12 weeks, but please contact your veterinarian. The Greenfield, Ind., veterinary drug maker inherited Interceptor from Novartis Animal Health, which discontinued the monthly medication in 2013 because of quality-control issues. In the worst case scenario, your dog will experience loose stools temporarily. If not, your veterinarian can guide you. They may show symptoms like mydriasis, depression, ataxia, tremors and even death. However, some dogs are more sensitive to the active ingredients than others. That said, it is always advisable to administer heartgard as per its guidelines since it is a prescription drug. Check out the Interceptor Plus product label for complete safety information, dosage schedule, storage information and possible side effects. The monthly tasty chew prevents and controls heartworms in dogs. Apart from that, proceed as usual and ensure you give the next dose on time. These effects were all transient and puppies returned to normal within 24 to 48 hours. Interceptor Plus is a fantastic heartworm and intestinal parasite prevention option. Yes, if you give your dog heartgard 10 to 20 times above the recommended dosage, it may cause your canine to become toxic or even die. We use cookies to give you the best possible experience on our website. If I accidentally gave my dog 2 doses heartgard at some point in the past, how can I ensure I avoid this from ever happening in the future? Interceptor Plus uses a different duo of ingredients Praziquantel and Milbemycin Oxime. My dog ate her dose and my other dogs dose of interceptor plus.so essentially she had a double dose. Furthermore, these tablets are effective in preventing heartworm disease as well as treating and controlling hookworms and heartworms. INTERCEPTOR PLUS should be administered at monthly intervals beginning within 1 month of the dogs first seasonal exposure to mosquitoes and continuing until at least 6 months after the dogs last seasonal exposure (see EFFECTIVENESS). She should be fine! In order to keep track of the monthly doses, use of tools such as a calendar and pill case is highly recommended. Usually he's right on the money at 50 pounds. #2 Avoid Mosquito Bites If you live somewhere with a lot of mosquitoes, try to keep them away from your dog. In conclusion, this field study confirms that both NexGardxae and NexGard Spectraxae administered twice one month apart provide an effective and safe treatment against sarcoptic mange in dogs. Without aggressive treatment, ivermectin poisoning can be deadly. What about half a heartgard, can I give my dog half a heartgard? However, always administer heartgard as per the its instructions since it is a prescription drug. Most dogs will readily take it as a treat. Dogs are prone to flatulence, and while this can be disgusting, it's normal and there are options to help deal with it. Which is better Sentinel or Interceptor PLUS? What is the difference between Interceptor and Interceptor plus for dogs? what if i give my dog two doses of interceptoralata samina lemon. HEARTGARD demonstrated no signs of toxicity at 10 times the recommended dose (60 mcg/kg) in sensitive Collies. how does it manifest? The answer will vary depending on the conditions in which the medication was stored and how out of date it was. However, it is advisable to administer heartgard as per its prescription, just to be safe. What happens if your dog takes too much heartworm medicine? What Will Happen If My Dog Ate Too Much Heartgard? Not only is ivermectin used in tiny doses to kill heartworms in a dogs body, it is also used in much higher concentrations (think 50-60x!)