Lantus (insulin glargine injection) Rx
Starting At $135.06 per pen

Lantus (insulin glargine injection) Rx

$135.06 per pen
Or save an extra 5% with Autoship* $128.31
  • Usually ships the same weekday before 3pm CT with veterinary approval.

  • Requires veterinary authorization.

  • Your pet's veterinarian will provide directions for use.

What is Lantus Insulin for Dogs and Cats?

  • Insulin is a hormone that is naturally produced by the pancreas to convert sugar (glucose) in the blood to energy for the body.
  • Insulin therapy is prescribed to dogs and cats with diabetes. Diabetic animals are either unable to produce their own insulin or cannot use it properly. 
  • Insulin helps treat diabetes in cats and dogs by normalizing the glucose level in the blood.
  • The insulin in Lantus is Insulin Glargine, a U-100, long-acting insulin. U-100 means that each milliliter of insulin is divided into 100 dosing units.

Why do cats and dogs use Lantus?

  • Insulin is prescribed to dogs and cats with diabetes mellitus to help lower their blood sugar.
  • Insulin is an ongoing, supportive treatment for diabetes.

What else should I know about Lantus?

  • Lantus should be discarded within 28 days after first puncture.
  • Syringes and pen needles are sold separately.
  • SoloStar pens can be used with U-100 insulin syringes or pen needles
  • SoloStar pens used with pen needles can only dose whole units. You cannot dial the pen to dispense a half unit.
  • Vials should be used with U-100 insulin syringes.
  • Store Lantus in the refrigerator. SoloStar pens should be stored at room temperature after first use.
  • Lantus is not eligible for free shipping.
  • Lantus must be shipped next day in cold packs.
  • Lantus cannot be shipped to Alaska or Hawaii.

What problems could my dog or cat have with Lantus?

  • Insulin overdoses may be fatal. Contact your veterinarian immediately if your dog or cat is not acting normally.
  • Signs of low blood sugar include weakness, depression, lack of energy, sluggishness, stumbling when walking, behavior changes, muscle twitching, seizures, or coma. It is a medical emergency if your cat or dog is unconscious or having a seizure.

How do you use Lantus?

  • Insulin works best when given regularly - at the same times each day and in the same way regarding feeding, such as always after a meal. Follow your veterinarian's directions.
  • Double check the dose every time before you give the insulin to prevent overdoses.
  • Keep a source of easily given sugar, such as corn syrup or honey, on hand at all times in case of low blood sugar. Follow your veterinarian's suggestions.

What is in Lantus?

  • The drug in Lantus is Insulin Glargine. Insulin Glargine is also found in Basaglar.
  • There are different kinds of insulin classified by how quickly they work, how long they last, or when they have peak effectiveness.
  • Insulin Glargine is a type of long-acting insulin. Long-acting insulin reaches the bloodstream several hours after injection and tends to lower blood sugar levels for up to 24 hours.

Will I get what I see in the picture?

  • Lantus is a brand name. You will receive the exact brand that you request.

Is it important for my dog or cat to finish all of the Lantus?

  • Dogs and cats may use Lantus for different lengths of time. Please consult your veterinarian if you have any questions.