Dr. Tiffany Delacruz, DVM • Chief Executive Officer, RexVet • 2026-07-04 • 6 min read
Get NexGard Prescription Online — $64.99 FL, NY & VA Licensed Vets | RexVet
Get a NexGard prescription online for your dog in Florida, New York, or Virginia. Licensed DVMs prescribe monthly flea+tick oral chewable by $64.99 video visit.
Medically reviewed by Dr. Tiffany Delacruz, DVM
Book your $64.99 online vet visit now
RexVet's licensed DVMs prescribe NexGard for qualifying dogs in Florida, New York and Virginia via $64.99 video visit. NexGard is the market-leading monthly oral flea and tick chewable, trusted by millions of pet parents since 2014.
What NexGard protects against
- Fleas — kills adult fleas within 8 hours, prevents flea eggs from developing
- Deer ticks (Ixodes scapularis) — the Lyme disease carrier
- American dog ticks (Dermacentor variabilis) — Rocky Mountain Spotted Fever carrier
- Brown dog ticks (Rhipicephalus sanguineus) — Ehrlichia carrier
- Lone Star ticks (Amblyomma americanum) — common in VA rural areas
NexGard vs alternatives
- NexGard — flea + tick only, monthly chewable, isoxazoline class
- NexGard Plus — adds heartworm + hookworm + roundworm protection, monthly chewable
- Simparica Trio — 3-in-1 competitor (fleas + ticks + heartworm + worms), different isoxazoline
- Bravecto — same isoxazoline class, works for 3 months per dose (chewable) or 8 months (topical)
- Frontline Plus — topical, older technology, less reliable than oral options
- Seresto collar — 8-month protection, good for dogs that won't take oral
What to have ready for your video visit
- Your dog's weight
- Current parasite prevention product and last dose
- Any known adverse reactions to isoxazoline drugs (NexGard, Simparica, Bravecto, Credelio)
- Your dog's age and reproductive status
- Seizure history if any
Dosing by dog weight
- 4-10 lbs: 11.3 mg chewable (orange box)
- 10.1-24 lbs: 28.3 mg chewable (blue box)
- 24.1-60 lbs: 68 mg chewable (purple box)
- 60.1-121 lbs: 136 mg chewable (red box)
- One chewable per month, given with or without food. Highly palatable — most dogs eat it directly from your hand.
Side effects and safety
- Most common: vomiting, dry/flaky skin, diarrhea, lethargy, decreased appetite (usually mild)
- Rare: neurologic reactions (seizures, tremors, ataxia) — FDA warning for isoxazoline class in dogs with underlying seizure disorders
- Not for cats
- Safe for pregnant, breeding, and lactating dogs (FDA-approved)
- Safe for puppies 8 weeks and older weighing at least 4 lbs
Cost transparency
$64.99 for the RexVet video visit. 6-pack of NexGard typically costs $85-$140 depending on dog weight — filled at Chewy, Costco, or local vet retail. If you also need heartworm prevention, ask about NexGard Plus or Heartgard Plus during your visit.
About Dr. Tiffany Delacruz — Chief Executive Officer
Our video visits are led by Dr. Tiffany Delacruz, DVM, and our licensed DVM team. Dr. Tiffany is licensed to practice veterinary medicine in Florida, New York and Virginia. She has prescribed NexGard and related isoxazolines for years across FL/NY/VA parasite prevention programs.
Emergency signals
When to contact a veterinarian
- Adverse reaction to NexGard (vomiting, lethargy, tremors, seizure) — same-day vet visit
- Dog with known seizure disorder considering isoxazoline class prevention
- Puppy under 8 weeks or under 4 lbs — not eligible for NexGard yet
- Missed multiple months — assess for flea infestation and tick exposure
Frequently asked questions
Can an online vet prescribe NexGard?
Yes — RexVet's licensed DVMs in Florida, New York and Virginia can prescribe NexGard during a $64.99 video visit. A valid veterinarian-client-patient relationship is established during the visit, which meets FDA and state requirements for prescription authority.
How much does NexGard cost?
The RexVet video visit is $64.99. A 6-pack of NexGard typically costs $85-$140 depending on dog weight — filled at Chewy, Costco Pet Pharmacy, or local vet retail. Total 6-month cost with one video visit typically $150-$200.
Is NexGard safe for my dog?
NexGard is FDA-approved and safe for the vast majority of dogs 8 weeks and older weighing at least 4 lbs. It is safe for pregnant, breeding, and lactating dogs. The isoxazoline class (NexGard, Simparica, Bravecto, Credelio) carries an FDA warning for rare neurologic reactions, especially in dogs with underlying seizure disorders — discuss with your vet if this applies.
How is NexGard different from NexGard Plus?
NexGard = flea + tick only. NexGard Plus = flea + tick + heartworm + hookworm + roundworm. If your dog also needs heartworm prevention (and most do in FL/NY/VA year-round), NexGard Plus or Simparica Trio consolidates both into one chewable. Discuss the right option with your RexVet vet.
How often does my dog need NexGard?
Monthly, year-round in FL/NY/VA. Tick activity is 12 months per year in Florida and even winter days above freezing keep ticks active in New York and Virginia. Missed doses create a flea and tick exposure window.
Can NexGard prevent Lyme disease?
NexGard doesn't prevent Lyme disease directly but kills deer ticks (the Lyme carrier) within 24-48 hours of attachment — usually before disease transmission. Combined with a Lyme vaccine in high-risk areas (NY especially), it's the strongest Lyme prevention strategy short of avoiding tick-heavy environments entirely.
Which states can RexVet prescribe NexGard in?
Florida, New York, and Virginia — where our vets are licensed. Outside these three states, our vets cannot legally prescribe.
Continue reading
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About the author
Dr. Tiffany Delacruz, DVM
Chief Executive Officer, RexVet
Licensed veterinarian and CEO of RexVet (Rex Vets Inc.). Practicing across Florida, New York, and Virginia via licensed telehealth. Reviews every clinical article on RexVet before publication.