NexGard is given as a tablet of the appropriate strength for the dog's bodyweight. NexGard kills fleas within 8 hours and ticks within 48 hours. After being given, its actions last for at least 5 weeks against fleas and up to one month against ticks.
If a dog vomits within 2 hours of administration of a Nexgard tablet, a new tablet should be given. If vomiting occurs after 2 hours, re-dosing is not necessary. There are no known drug interactions with afoxolaner.
If your dog is constantly being reinfested with fleas after treatment, it is most likely there is an environmental infestation in or around your house. The adult fleas we see on pets represent only 5% of the total population. The other 95% are immature stages in the environment.
The most frequently reported adverse reactions include vomiting, itching, lethargy, diarrhea, and lack of appetite. The safe use of NexGard in pregnant, breeding, or lactating dogs has not been evaluated. Use with caution in dogs with a history of seizures or neurologic disorders.
The small percentage of ticks that do land on your dog's fur are immediately affected by the medication and are unable to walk or attach to the skin. Within minutes, the ticks fall off your dog and die, rendering them unable to affect your family or other pets.
NexGard is given as a tablet of the appropriate strength for the dog's bodyweight. NexGard kills fleas within 8 hours and ticks within 48 hours. After being given, its actions last for at least 5 weeks against fleas and up to one month against ticks.
It should settle down though after 24 hours. If after 24 hours your pet still continues to scratch, there could be other things going on. Your pet could be flea-allergic, it could have a skin infection or a hormone imbalance, or other conditions which can lead to itchiness.
Chewables Administered
60.1 to 121.0 lbs. Over 121.0 lbs. NexGard can be administered with or without food. Care should be taken that the dog consumes the complete dose, and treated animals should be observed for a few minutes to ensure that part of the dose is not lost or refused.
How Does Oral Tick Protection for Dogs Work? When a dog takes NexGard® (afoxolaner), the active ingredient protects them by spreading throughout their system. When a tick bites, it gets a tiny dose of that active ingredient, which is designed to quickly kill the tick.
Nexgard does sometimes cause a little GI upset or diarrhea, especially if it is not given with food. Giving it with a full meal can help prevent that next month. If he continues to have diarrhea, or starts vomiting or is lethargic, then it would be best to have your puppy seen by a veterinarian as soon as possible.
NexGard kills adult fleas rapidly before they can lay eggs, helping to prevent infestation of the environment.
Immature fleas may take several weeks to develop and create an exposure risk for your pet. As soon as those fleas jump on an animal treated with FRONTLINE Plus or NexGard, they will die.
For an entire month, NexGard will keep killing any new fleas that jump on your dog before they can lay eggs. NexGard® is effective in breaking the flea life cycle.
Vomiting may be the only sign of an overdose of Nexgard®. If you suspect an overdose, immediately contact your veterinarian, seek emergency veterinary care, or call an animal poison control center.
How often should NexGard SPECTRA be given? You should dose your dog once a month, ideally on the same day of each month.
Less than 2 weeks: Give your dog the missed dose immediately. Your dog will be protected from heartworm disease because you will still be within the 45-day grace period in which the preventative is effective. Resume your normal monthly dosing schedule.
Isoxazolines are neurotoxic to more than just insects; they also affect mammals. There is a reason why so many dogs experience seizures, ataxia, and tremors after taking NexGard — the pesticide compromises the dog's central nervous system. Once this happens, there is often no way back.
The safety studies for NexGard had a good outcome with a very small percentage of dogs experiencing minor adverse effects. The most frequently reported adverse reaction was vomiting; less frequent reactions included dry skin, diarrhea, lethargy, and anorexia.
In the US field study, one dog with a history of seizures experienced a seizure on the same day after receiving the first dose and on the same day after receiving the second dose of NexGard. This dog experienced a third seizure one week after receiving the third dose.
Thank you for your question. I would not expect the lethargy or diarrhea to last more than 12-24 hours.
NEXGARD® is recommended for use in dogs and puppies 8 weeks of age and older. FOR ANIMAL USE ONLY. NEXGARD® contains afoxolaner, an insecticide-acaricide for oral treatment and prevention of flea and tick infestations of dogs for one month following a single administration.
If you miss that monthly dose, your pet is at a potential risk of getting flea or tick bites, which can transmit some serious diseases. Heartworm preventive medicine is especially important to keep on schedule for your pet.
Provided a thorough approach to flea treatment using appropriate products has been undertaken then if your pet continues to scratch there are likely to be other factors contributing. These may include allergies or intolerances to food substances, cleaning products and or an underlying medical condition.
When used as directed, pets treated with FRONTLINE® flea and tick treatments do not pose a health risk to children or adults. It is a recommended precaution that children or adults do not pet, play or sleep with treated animals until the application site is dry.
The most common reason is that the fleas are being killed and the dog is no longer being bitten by them. This can cause the dog to feel itchy and uncomfortable, which may lead to restlessness. Additionally, the chemicals in some flea treatments can be irritating to dogs, leading to discomfort and restlessness.