Why Heartworm Preventatives Need a Prescription

Heartworm disease is a serious and potentially fatal condition that can affect dogs and cats. The disease is caused by a parasitic worm transmitted through mosquito bites. $500 loan online. Heartworm preventatives are medications designed to prevent this disease by killing the heartworm larvae before they can mature into adult worms.

One thing that may surprise pet owners is that all heartworm prevention for dogs and cats requires a prescription from a veterinarian. Many people wonder why this is the case, and there are several good reasons.

  • Heartworm preventatives are medications designed to be given to dogs and cats for a certain period, usually monthly. Like all medications, they can have side effects and interactions with other medications. By requiring a prescription, veterinarians can ensure that the medication is safe for your dog or cat and that it will not interact with any other medications they may be taking.
  • Heartworm-preventative medications are designed to be effective at specific dosages based on the animal’s weight. Overdosing or underdosing can result in the medication not being effective or causing harm to your dog or cat. By requiring a prescription, veterinarians can ensure the correct dosage is given to each pet.
  •  Heartworm preventatives are prescription medications because they are regulated by the FDA. The FDA regulates all medications, including those for pets, to ensure they are safe and effective. By requiring a prescription, the FDA is able to ensure that heartworm medications are being used in a safe and effective manner.

Why Does my Dog or Cat Need a Heartworm Test?

The American Heartworm Society and most veterinarians recommend an annual heartworm test before prescribing a heartworm preventative. Blood testing ensures that the medication is effective, the pet is not already infected with heartworms, and there are no adverse effects of the medication. Heartworm-preventative medications kill immature heartworm larvae and prevent them from maturing into adults, which causes illness. These medications do not kill adult heartworms.

  • A dog or cat that is infected with heartworms will require a different treatment plan. Starting medication without testing can put the pet at risk of serious complications.
  • Preventatives are highly effective, but your dog or cat can still become infected with heartworms even while taking the medication. Blood testing detects any new infection and allows for prompt treatment.

If you have any questions or concerns about heartworm prevention for your dog or, talk to your veterinarian. They can recommend the best medication for your dog or cat so they receive the best protection from heartworm disease. Learn more about heartworm disease in dogs and cats on our blogs.


This information is not intended to diagnose or treat any disease and is purely educational. Please seek advice from your pet’s veterinarian with any questions regarding your pet’s health. 

2022 Winter Holiday Hours and Shipping Schedule

With the Christmas and New Year holidays approaching, our pharmacy will have abbreviated hours and shipping schedules. While VetRxDirect.com is available 24 hours a day for online order placement, please pay particular attention to pharmacy hours and shipping schedules, especially if you rely on our pharmacy for insulin or other temperature-sensitive products. While we always ship every package as soon as possible at VetRxDirect, please consider ordering early to avoid the holiday shipping rush, and please allow extra time for delivery on orders placed in the upcoming weeks. This season our pharmacy will be closed with no shipping or receiving on December 24th, 26th, 31st, and January 2nd.

VetRxDirect’s Winter Holiday Pharmacy Hours:

  • Saturday, December 24: CLOSED
  • Monday, December 26: CLOSED
  • Tuesday, December 27: Resume normal business hours.
  • Saturday, December 31: CLOSED
  • Monday, January 2: CLOSED
  • Tuesday, January 3: Resume normal business hours.

VetRxDirect’s Winter Holiday Shipping Schedule:

  • Wednesday, December 21: Last day to ship refrigerated orders.
  • December 22-23: No temperature-sensitive orders shipped.
  • Saturday, December 24: CLOSED
  • Monday, December 26: CLOSED
  • Wednesday, December 28: Last day to ship refrigerated orders.
  • December 29-30: No temperature-sensitive orders shipped.
  • Saturday, December 31: CLOSED
  • Monday, January 2: CLOSED
  • Tuesday, January 3: Resume normal shipping policies.

*Prescription orders, including temperature-sensitive drugs, can only ship after approval from your veterinarian. Visit our website for more information.

Please feel free to leave us a text message or send us an email at info@vetrxdirect.com. We’ll do our best to return your call or send replies during our next business hours after your message.

We wish you and your pets a safe and happy holiday season!

The VetRxDirect Pharmacy Team

2022 Thanksgiving Hours and Shipping Schedule

VetRxDirect will be closed Thursday, November 24th for Thanksgiving Day.

Our pharmacy will have abbreviated hours and shipping schedules. While VetRxDirect.com is available 24 hours a day for online order placement, please pay particular attention to our hours and shipping schedule, especially if you rely on our pharmacy for insulin or other temperature-sensitive products. Due to the holiday shipping rush, please consider ordering early to allow extra time for any postal delays.

2022 Thanksgiving Pharmacy Hours:

  • Thursday, November 24: CLOSED.
  • Friday, November 25: Open regular business hours 9:00 am – 5:00 pm CST.

2022 Thanksgiving Shipping Schedule:

  • Monday, November 21: Last day to ship temperature-sensitive orders this week*
  • Wednesday, November 23: No temperature-sensitive orders will ship.
  • Thursday, November 24: CLOSED.
  • Friday, November 25: No temperature-sensitive orders shipped, except for Saturday Delivery service.**
  • Monday, November 28: Resume normal shipping policies.

*Prescription orders, including temperature-sensitive drugs, can only ship after approval from your veterinarian. Prescription authorization must be obtained before 3 PM CST to be shipped the same day.

**Next Day with Saturday Delivery is an available shipping option that you may select at your order checkout. Please visit our website for more information.

You may leave us a text message or send us an email at info@vetrxdirect.com anytime. We’ll return your message during our next business hours.

On behalf of the VetRxDirect pharmacy team,

Have a Safe and Happy Thanksgiving!

2022 Labor Day Holiday and Shipping Schedule

VetRxDirect will be closed Monday, September 5th, 2022 in observance of Labor Day.

Our pharmacy will have abbreviated hours and shipping schedules. While VetRxDirect.com is available 24 hours a day for online order placement, please pay particular attention to our hours and shipping schedule, especially if you rely on our pharmacy for insulin or other temperature-sensitive products.

  • Thursday, September 1: Last day to ship temperature-sensitive orders this week.
  • Friday, September 2: No temperature-sensitive orders will ship.
  • Saturday, September 3: Regular pharmacy hours. No orders will ship.
  • Sunday, September 4: CLOSED.
  • Monday, September 5: CLOSED.
  • Tuesday, September 6: Resume normal hours and shipping policies.

*Prescription orders, including temperature-sensitive drugs, can only ship after approval from your veterinarian. Prescription authorization must be obtained before 3 PM CST in order to be shipped out on the same day. Visit our website for more information.

Please feel free to leave a message or send us an email at info@vetrxdirect.com anytime. We’ll do our best to return your call or send replies during our next business hours after your message.

Have a safe and Happy Labor Day!

-The VetRxDirect Pharmacy Team

Moxidectin for Dogs and Cats

With all of the different types of flea, tick, and heartworm medications available for dogs and cats it’s sometimes difficult to keep track of the ingredients and which parasites they treat. Moxidectin is found in multiple products including Simparica Trio for Dogs, Advantage Multi for Cats, Advantage Multi for Dogs, and Bravecto Plus for Cats. Moxidectin is used in dogs and cats to prevent heartworm disease and treat and control infections of intestinal parasites including roundworms, and hookworms. Moxidectin itself does not kill fleas or ticks, but it is often combined with other active ingredients in topical and oral products that provide broad-spectrum protection against a host of parasites.

How Does Moxidectin Work?

Moxidectin is labeled for the prevention of heartworm disease in dogs and cats. It is important to know that Moxidectin only prevents heartworm disease and does not treat existing heartworm infections. This is because it is only effective in killing immature heartworm larvae (Dirofilaria immitis) and does not kill the adult heartworms found in animals with existing infections. It also treats and controls infections of intestinal parasites including hookworms and roundworms.

Products with Moxidectin

 

Does it Require a Prescription?

Products containing Moxidectin require a prescription from a veterinarian because of their ability to prevent heartworm disease. The American Heartworm Society and most veterinarians recommend an annual heartworm test before prescribing a heartworm preventative for your dog or cat. This is because dogs and cats with existing heartworm infections can have serious complications after taking preventatives. Learn more.

It is always recommended to speak with your veterinarian about the right parasite preventative product for your dog or cat’s needs. Your veterinarian can recommend the best product for your dog or cat based on your location and the type of parasites they may encounter.

 


This information is not intended to diagnose or treat any disease and is purely educational. Please seek advice from your pet’s veterinarian with any questions regarding the health of your pet. 

2022 Independence Day Holiday and Shipping Schedule

VetRxDirect will be closed Monday, July 4th, 2022 in observance of Independence Day.

Our pharmacy will have abbreviated hours and shipping schedules. While VetRxDirect.com is available 24 hours a day for online order placement, please pay particular attention to our hours and shipping schedule, especially if you rely on our pharmacy for insulin or other temperature-sensitive products.

  • Thursday, June 30: Last day to ship temperature-sensitive orders this week.
  • Friday, July 1: No temperature-sensitive orders will ship.
  • Saturday, July 2: Regular pharmacy hours. No orders will ship.
  • Sunday, July 3: CLOSED.
  • Monday, July 4: CLOSED.
  • Tuesday, July 5: Resume normal shipping policies.

*Prescription orders, including temperature-sensitive drugs, can only ship after approval from your veterinarian. Prescription authorization must be obtained before 3 PM CST in order to be shipped out on the same day. Visit our website for more information.

Please feel free to leave a message or send us an email at info@vetrxdirect.com anytime. We’ll do our best to return your call or send replies during our next business hours after your message.

Have a safe and Happy Fourth of July!

-The VetRxDirect Pharmacy Team

2022 Memorial Day Holiday and Shipping Schedule

VetRxDirect will be closed Monday, May 30th, 2022 in observance of Memorial Day.

Our pharmacy will have abbreviated hours and shipping schedules. While VetRxDirect.com is available 24 hours a day for online order placement, please pay particular attention to our hours and shipping schedule, especially if you rely on our pharmacy for insulin or other temperature-sensitive products.

  • Thursday, May 26: Last day to ship temperature-sensitive orders this week.
  • Friday, May 27: No temperature-sensitive orders will ship.
  • Saturday, May 28: Regular pharmacy hours. No orders will ship.
  • Sunday, May 29: CLOSED.
  • Monday, May 30: CLOSED.
  • Tuesday, May 31: Resume normal shipping policies.

*Prescription orders, including temperature-sensitive drugs, can only ship after approval from your veterinarian. Prescription authorization must be obtained before 3 PM CST in order to be shipped out on the same day. Visit our website for more information.

Please feel free to leave a message or send us an email at info@vetrxdirect.com anytime. We’ll do our best to return your call or send replies during our next business hours after your message.

Have a safe and Happy Memorial Day!

-The VetRxDirect Pharmacy Team

New Visbiome Vet Probiotic Packets

Visbiome Vet is Now Available In Packets!

The new Visbiome Vet Probiotic Packets are designed to make dosing for larger animals easier! When it comes to your pet’s diet, one size does not fit all. The larger the pet the more gut support they may need. Visbiome Vet Powder Packets are designed specifically for larger animals. Each packet contains 225 billion CFUs, 2 times the potency of 1 Visbiome Vet capsule.

Visbiome Vet Powder vs Capsules

Now there is no need to pull apart capsules, simply tear open a packet and mix the powder into the pet’s food or water. How is Visbiome Powder this different from the capsules? Visbiome Vet packets are all powder and provide an easier way to administer. The capsules contain 112.5 billion live bacteria and each powder packet contains 225 billion bacteria.

Visbiome Vet Dosing Chart

What is Visbiome Vet Probiotic?

Visbiome Vet is a high potency probiotic formula for dogs and cats. It is made with 8 concentrated strains of live probiotic bacteria, with each capsule containing 112.5 billion bacteria and each powder packet containing 225 billion bacteria. Visbiome assists in reducing occasional loose stools due to environmental stress or dietary changes. It supports the protective layers of the bowel, maintains proper gut flora, and may help manage pets with inflammatory bowel disease. Because it contains live bacteria, Visbiome is stored and shipped cold with temperature monitoring to ensure the highest potency.*

Visbiome Capsules at VetRxDirect
Visbiome Powder Packets at VetRxDirect

Pawsitive Reviews for Visbiome Vet!

Don’t take it from us, check out what other pet parents have to say about Visbiome! With over 400 reviews, This probiotic formula is a top favorite among dog and cat owners and their veterinarians. Many pet parents are sharing stories of improved gut issues, better quality stools, some even describing it as a “game-changer” and “live saver”.

Does your dog or cat take Visbiome? We’d love to hear from you! Leave us a comment below or on our website!

*All orders of VisbiomeVet are shipped with a sensor to guarantee your order did not experience elevated temperatures during shipping. VetRxDirect recommends Next Business Day Shipping to an address with a controlled environment where a person can take immediate possession of the package and refrigerate if you live in an area experiencing ambient outdoor temperatures above 77° F.


This information is not intended to diagnose or treat any disease and is purely educational. Please seek advice from your pet’s veterinarian with any questions regarding the health of your pet. 

Selamectin for Dogs and Cats

With so many different flea, tick, and heartworm preventatives available for dogs and cats it’s sometimes difficult to keep track. Selamectin is a topical antiparasitic medication for dogs and cats prescribed for various parasite infections. Selamectin is the active ingredient found in multiple products including Revolution For Dogs, Revolution for Cats, Selarid for Dogs, Selarid for Cats, Revolt for Cats, Revolt for Dogs, Senergy for Cats, and Senergy for Dogs. Selamectin is used in dogs and cats to prevent heartworm disease and treat and control flea and ear mite infestations. In dogs, Selamectin also controls tick infestations of the American dog tick and treats sarcoptic mange. In cats, it also treats intestinal roundworm and hookworm infections. 

How Does Selamectin Work?

Medications containing selamectin for dogs and cats are applied to the skin and are absorbed with the natural oils secreted by their skin. Selamectin works to kill parasites by interfering with the nervous system of the infecting parasite. 

What Parasites Does Selamectin Work Against?

Dogs:

  • Prevents heartworm disease
  • Treats ear mites
  • Treats sarcoptic mange
  • Controls American Dog tick infestations
  • Kills adult fleas and prevents flea eggs from hatching

Cats:

  • Prevents heartworm disease
  • Treats ear mites
  • Treats hookworms & roundworms
  • Kills adult fleas and prevents flea eggs from hatching

Selamectin Prevents Heartworm Disease

Selamectin is labeled for the prevention of heartworm disease in dogs and cats. It is important to know that Selemctin only prevents heartworm disease and does not treat existing heartworm infections. This is because it is only effective against killing the immature heartworm larvae (Dirofilaria immitis) and does not kill the adult stage heartworms found in animals with existing infections. 

Products with Selamectin

Does Selamectin Require a Prescription?

Products containing Selamectin for dogs and cats require a prescription from a veterinarian because of their ability to prevent heartworm disease. The American Heartworm Society and most veterinarians recommend an annual heartworm test before prescribing a heartworm preventative for your dog or cat. This is because dogs and cats with existing heartworm infections can have serious complications after taking preventatives.

It is always recommended to speak with your veterinarian about the right parasite preventative product for your dog or cat’s needs. Your veterinarian can recommend the best product for your dog or cat based on your location and the type of parasites they may encounter. 


This information is not intended to diagnose or treat any disease and is purely educational. Please seek advice from your pet’s veterinarian with any questions regarding the health of your pet. 

2021 Winter Holiday Hours and Shipping Schedule

With the Christmas and New Year’s holidays approaching, our pharmacy will have abbreviated hours and shipping schedules. While VetRxDirect.com is available 24 hours a day for online order placement, please pay particular attention to pharmacy hours and shipping schedule, especially if you rely on our pharmacy for insulin or other temperature-sensitive products. While we always ship every package as soon as possible at VetRxDirect, please allow extra time for delivery on orders placed in the upcoming weeks. This season our pharmacy will be closed with no shipping or receiving on December 24th, 25th, 31st, and January 1st.

VetRxDirect’s 2021 Holiday Customer Service Hours are:

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  • Friday, December 24: CLOSED
  • Saturday, December 25: CLOSED
  • Monday, December 27: Resume normal business hours.
  • Friday, December 31: CLOSED
  • Saturday, January 1: CLOSED
  • Monday, January 3: Resume normal business hours.

VetRxDirect’s 2021 Holiday Shipping Schedule is:

  • Tuesday, December 21: Last day to ship Next or 2nd Day refrigerated orders.
  • December 22-23: No temperature sensitive orders shipped.
  • Friday, December 24: CLOSED
  • Saturday, December 25: CLOSED
  • Tuesday, December 28: Last day to ship Next or 2nd Day refrigerated orders.
  • December 29-30: No temperature sensitive orders shipped.
  • Friday, December 31: CLOSED
  • Saturday, January 1: CLOSED
  • Monday, January 3: Resume normal shipping policies.

*Prescription orders, including temperature-sensitive drugs, can only ship after approval from your veterinarian. Visit our website for more information.

Please feel free to leave us a chat message or send us an email at info@vetrxdirect.com. We’ll do our best to return your call or send replies during our next business hours after your message.

We wish you and your pets a safe and happy holiday season!

The VetRxDirect Pharmacy Team