Indications 

Nexgard is a dog medication used to eradicate adult fleas. It treats and prevents flea infestations (Ctenocephalides felis) in dogs and puppies weighing at least 4 pounds and 8 weeks of age or older. 

Nexgard is also indicated to control infestations of the following types of ticks in dogs and puppies for a month: 

• Black-legged ticks (Ixodes scapularis) 
• American dog ticks (dermacentor variabilis) 
• Lone star ticks (amblyomma americanum) 
• Brown dog ticks (rhipicephalus sanguineus)  

In addition, Nexgard also helps prevent borrelia burgdorferi infections by killing lxodes scapularis vector ticks. 

Classified as an isoxazoline, Nexgard eliminates fleas by over-stimulating their nervous system, resulting in uncontrolled activity and death within 6-8 hours of administration. Its fast-acting mechanism kills adult fleas before they reproduce, thus averting environmental infestation. 

Uses and Dosage 

Nexgard is subject to legal restrictions and must be used exclusively under the direction of a licensed veterinarian. 

Typically, Nexgard is administered orally once a month, with or without food, at a minimum dosage of 1.14 mg/lb (2.5 mg/kg). 

Dosing Schedule: 

Ensure the dog consumes the entire Nexgard dose and monitor them for a few minutes to prevent any loss or refusal. In case of suspected loss or vomiting within two hours of administration, a full redose is recommended.  

NexGard treatment can be initiated at any time of the year. However, for flea prevention and treatment, in areas where fleas are prevalent throughout the year, monthly administration of this medication should be uninterrupted for the entire year. 

To reduce the chances of flea reinfestation, it is recommended to administer an approved flea control product to all animals within the household. 

Side Effects 

Adverse reactions to Nexgard are infrequent but may include the following listed below. 

Common Side Effects 

• Vomiting 
• Diarrhea 
• Lethargy 
• Inappetence 
• Itching 

Serious Side Effects 

•  Seizures (rarely) 

Most adverse reactions of Nexgard are brief and self-limiting, however, if they persist or worsen, consult with a veterinarian. 

Cautions 

Nexgard is not intended for human use. Keep it out of children’s reach. In the event of accidental ingestion, seek immediate medical attention. 

To prevent accidental ingestion or overdose, store NexGard in a secure location that is inaccessible to dogs, cats, and other animals. 

The safety of NexGard has not been assessed in breeding, pregnant, or lactating dogs. Consult a veterinarian for guidance on appropriate treatment options.