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What is a Generic Drug?

A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.

The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.

Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.

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    • Description

      Vectra is an effective topical flea prevention medication for dogs that provides a full month of protection from fleas with just one application at the same time every month. But that’s not all, Vector for dogs not only kills fleas but it does the same for flea eggs and larvae. Making it so that the chance of fleas being able to keep up their act on your dog are slim to none. Vectra starts to kill fleas within 6 hours of application, and within days you’ll likely see your dog start to experience some relief from the itchiness and need to scratch themselves constantly.

      Buy Vectra online from World Pet Express and get the best price on this reliable flea killer medication for dogs.


      All that’s needed for a full month of flea prevention for dogs with Vectra is one topical application of the solution to your dog. Begin by removing one applicator packet and snap off the tip of the applicator while ensuring it’s facing upwards while you do this. Then part your dog’s fur at the base of its neck (to expose skin beneath.)

      Apply the entirety of the solution in the packet to the skin and allow it to spread and be absorbed on its own. For small dogs apply the product to just one spot. For medium-sized dogs up to 55lbs, you can apply it to 3 spots, including one at the base of the neck and 2 along the upper back. For large dogs up to 100lbs, you can apply it at the base of the neck and then on 3 spots along the back.

      Do not use fingers or any other implement to spread the solution. Wash hands thoroughly with soap and water following and does not allow your dog to get wet for 24 hours following application.


      The active ingredients in Vector are Dinotefuran and Pyriproxyfen.


      Vectra is only for use with dogs 8 weeks of age or older. Not for use on cats.

      Follow the dosage guidelines exactly as indicated on the packaging.

      The safe use of this medication has not been evaluated for pregnant or lactating (nursing) dogs. Speak with your veterinarian if you have a female dog who is pregnant or nursing and needs a flea control method.

      Keep out of reach of children.


      There are no interaction risks between the use of Vectra for dogs and any other pet supplements or Rx medications.

      Side Effects

      Side effects related to the use of a Vectra for dogs flea prevention are uncommon, but in rare instances, dogs may experience vomiting, diarrhea, diarrhea, hypersalivation, lethargy, or itchy skin. If any such side effects are observed it is recommended that you discontinue use and see your veterinarian to discuss alternative flea control treatments.

      Product Code : 12670