Coming from the reputable makers of Frontline, NexGard kills 100% of fleas in 24 hours and ticks within 48 hours. Additionally, it is effective in preventing tick-borne diseases such as Lyme, Anaplasmosis, Ehrlichiosis, and Rocky Mountain spotted fever.

As you will see later in this article not treating your pet may actually be detrimental to its health. Merial, the manufacturer of Nexgard/Nexgard Spectra have advised us that they have no concerns about these products when used in healthy animals according to the data sheet.

IMPORTANT SAFETY INFORMATION NexGard® (afoxolaner) is for use in dogs only and is safe for dogs 8 weeks or older and weighing 4 pounds or more. The most frequently reported adverse reactions include vomiting, itching, lethargy, diarrhea, and lack of appetite.

Causes of NexGard reactions in dogs are primarily due to a reaction to the active ingredient, afoxolaner. Specific causes include: The hypersensitivity towards the main ingredient. An over-reactive immune system.

What kinds of adverse reactions have been reported?

• Vomiting.
• Diarrhea.
• Dry, flaky skin.
• Hair change at the application site (in Nexgard Combo for cats)
• Isoxazoline-associated signs (muscle tremors, ataxia, seizures)

There have been some reported cases of various neurological events (muscle tremors, ataxia, and seizures). These products are safe to use in the majority of pets, but there are some pets that cannot tolerate the medication (specific liver disorders, pre-existing seizure disorders).

Oral products, like Nexgard (Boehringer Ingelheim) and Bravecto (Merck Animal Health), contain isoxazoline derivatives that negatively affect the tick's nervous system, resulting in death of the tick. Oral products are effective and convenient.

Nexgard® Possible Side Effects

• Vomiting.
• Dry or itchy skin.
• Lethargy.
• Diarrhea.
• Loss of appetite.
• Allergic reactions: hives or facial swelling.

NexGard® (afoxolaner) is for use in dogs only and is safe for dogs 8 weeks or older and weighing 4 pounds or more. 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.

NexGard chews have been shown to provide effective protection for a complete month: it is not required or recommended to treat more frequently than this. To ensure your dog is always protected, aim to dose your dog on the same day every month.

If you give your dog or cat the flea and tick preventatives Bravecto, Nexgard, or Credelio, the FDA wants you to be aware that these medications may cause neurological issues like stumbling, seizures, and twitching in your pet.

NexGard provides effective control of pre-existing paralysis tick infestations within 24 hours. Newly acquired ticks are killed within 48 hours. How does NexGard SPECTRA for Dogs kill ticks? NexGard SPECTRA kills ticks by over-stimulating their nervous system, which results in death of the parasite.