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Lantus Diabetes Treatment - Lantus Patient Information

Brand Names: Lantus, Lantus OptiClik Cartridge, Lantus Solostar Pen
Generic Name: insulin glargine

Pronounced: (IN soo lin GLAR jeen)

Lantus, OptiClik, Solostar Pen, full prescribing information

What is Lantus and why is Lantus prescribed?

Lantus (insulin glargine) is a man-made form of a natural hormone. It is a long-acting insulin that is slightly different from other forms of insulin that are not man-made and it works by lowering levels of glucose in the blood.

Lantus is used to treat type 1 (insulin-dependent) or type 2 (non insulin-dependent) diabetes.

Lantus may also be used for other purposes not listed.

Important information about Lantus

Do not use Lantus if you are allergic to insulin glargine.

Take care to keep your blood sugar from getting too low, causing hypoglycemia. Symptoms of low blood sugar may include headache, nausea, hunger, confusion, drowsiness, weakness, dizziness, blurred vision, fast heartbeat, sweating, tremor, or trouble concentrating. Carry a piece of non-dietetic hard candy or glucose tablets with you in case you have low blood sugar. Also be sure your family and close friends know how to help you in an emergency.

Also watch for signs of blood sugar that is too high (hyperglycemia). These symptoms include increased thirst, loss of appetite, increased urination, nausea, vomiting, drowsiness, dry skin, and dry mouth. Check your blood sugar levels and ask your doctor how to adjust your insulin doses if needed.

Never share an injection pen or cartridge with another person. Sharing injection pens or cartridges can allow disease such as hepatitis or HIV to pass from one person to another.

Lantus is only part of a complete program of treatment that may also include diet, exercise, weight control, foot care, eye care, dental care, and testing your blood sugar. Follow your diet, medication, and exercise routines very closely. Changing any of these factors can affect your blood sugar levels.

Before using Lantus

Do not use Lantus if you are allergic to insulin glargine.

Before using Lantus, tell your doctor if you have liver or kidney disease.

Tell your doctor about all other medications you use, including any oral (by mouth) diabetes medications.

Lantus is only part of a complete program of treatment that may also include diet, exercise, weight control, foot care, eye care, dental care, and testing your blood sugar. Follow your diet, medication, and exercise routines very closely. Changing any of these factors can affect your blood sugar levels.

Your doctor will need to check your progress on a regular basis. Do not miss any scheduled appointments.

FDA pregnancy category C. This medication may be harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment. It is not known whether Lantus passes into breast milk or if it could harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.


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How should I use Lantus?

Use Lantus exactly as it was prescribed for you. Do not use it in larger amounts or for longer than recommended by your doctor. Follow the directions on your prescription label.

You should not mix Lantus with other insulins.

Lantus is given as an injection (shot) under your skin. Your doctor, nurse, or pharmacist will give you specific instructions on how and where to inject this medicine. Do not self-inject this medicine if you do not fully understand how to give the injection and properly dispose of used needles and syringes.

Lantus should be thin, clear, and colorless. Do not use the medication if it has changed colors or has any particles in it. Call your doctor for a new prescription.

Choose a different place in your injection skin area each time you use Lantus. Do not inject into the same place two times in a row.

Use each disposable needle only one time. Throw away used needles in a puncture-proof container (ask your pharmacist where you can get one and how to dispose of it). Keep this container out of the reach of children and pets.

The SoloStar injection pen contains a total of 300 units of insulin. The pen is designed to deliver from 1 to 80 units with each press of the injection button. Do not press the button more than one time per injection unless your doctor has prescribed a dose greater than 80 units.

Never share an injection pen or cartridge with another person. Sharing injection pens or cartridges can allow disease such as hepatitis or HIV to pass from one person to another.

Check your blood sugar carefully during a time of stress or illness, if you travel, exercise more than usual, or skip meals. These things can affect your glucose levels and your Lantus insulin dose needs may also change.

Watch for signs of blood sugar that is too high (hyperglycemia). These symptoms include increased thirst, loss of appetite, increased urination, nausea, vomiting, drowsiness, dry skin, and dry mouth. Check your blood sugar levels and ask your doctor how to adjust your Lantus insulin doses if needed.

Ask your doctor how to adjust your Lantus dose if needed. Do not change your dose without first talking to your doctor. Carry an ID card or wear a medical alert bracelet stating that you have diabetes, in case of emergency. Any doctor, dentist, or emergency medical care provider who treats you should know that you are diabetic. Storing unopened vials, OptiClik, or SoloStar devices: Keep in the carton and store in a refrigerator, protected from light. Throw away any insulin not used before the expiration date on the medicine label. Store the injection pen with its cap on. Unopened vials, OptiClik, or SoloStar devices may also be stored at room temperature for up to 28 days, away from heat and bright light. Throw away any insulin not used within 28 days.

Storing after your first use: You may keep "in-use" vials or cartridges not yet loaded into the OptiClik in the refrigerator or at room temperature, protected from light. Use within 28 days.

Do not refrigerate an in-use OptiClik or SoloStar device, or a cartridge that has been inserted into the OptiClik. Keep it at room temperature and use within 28 days.

Do not freeze Lantus, and throw away the medication if it has become frozen.

What happens if I miss a dose?

Use the missed dose as soon as you remember. If it is almost time for your next dose, wait until then to use the medicine and skip the missed dose. Do not use extra medicine to make up the missed dose. You should not use more than one dose in a 24-hour period unless your doctor tells you to.

It is important to keep Lantus on hand at all times. Get your prescription refilled before you run out of medicine completely.

What happens if I overdose?

Seek emergency medical attention if you think you have used too much of this medicine. An insulin overdose can cause life-threatening hypoglycemia.

Symptoms of severe hypoglycemia include extreme weakness, blurred vision, sweating, trouble speaking, tremors, stomach pain, confusion, seizure (convulsions), or coma.

What should I avoid while using Lantus?

Do not change the brand of insulin glargine or syringe you are using without first talking to your doctor or pharmacist. Avoid drinking alcohol. Your blood sugar may become dangerously low if you drink alcohol while using Lantus. Do not expose Lantus to high heat.

Lantus side effects

Get emergency medical help if you have any of these signs of insulin allergy: itching skin rash over the entire body, wheezing, trouble breathing, fast heart rate, sweating, or feeling like you might pass out.

Hypoglycemia, or low blood sugar, is the most common side effect of Lantus. Symptoms of low blood sugar may include headache, nausea, hunger, confusion, drowsiness, weakness, dizziness, blurred vision, fast heartbeat, sweating, tremor, trouble concentrating, confusion, or seizure (convulsions). Watch for signs of low blood sugar. Carry a piece of non-dietetic hard candy or glucose tablets with you in case you have low blood sugar.

Tell your doctor if you have itching, swelling, redness, or thickening of the skin where you inject Lantus.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What other drugs will affect Lantus?

Using certain medicines can make it harder for you to tell when you have low blood sugar. Tell your doctor if you use any of the following:

  • albuterol (Proventil, Ventolin);
  • clonidine (Catapres);
  • reserpine;
  • guanethidine (Ismelin); or
  • beta-blockers such as atenolol (Tenormin), bisoprolol (Zebeta), labetalol (Normodyne, Trandate), metoprolol (Lopressor, Toprol), nadolol (Corgard), propranolol (Inderal, InnoPran), timolol (Blocadren) and others.

There are many other medicines that can increase or decrease the effects of Lantus on lowering your blood sugar. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor. Keep a list with you of all the medicines you use and show this list to any doctor or other healthcare provider who treats you.

Where can I get more information?

  • Your pharmacist can provide more information about Lantus.
  • Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use Lantus only for the indication prescribed.

Lantus, OptiClik, Solostar Pen, full prescribing information

Detailed Info on Signs, Symptoms, Causes, Treatments of Diabetes

last updated 04/2006

back to: Browse all Medications for Diabetes

APA Reference
Staff, H. (2006, April 28). Lantus Diabetes Treatment - Lantus Patient Information, HealthyPlace. Retrieved on 2020, August 15 from https://www.healthyplace.com/diabetes/medications/lantus-glargine-insulin-pump

Last Updated: July 21, 2014

Medically reviewed by Harry Croft, MD

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