Get Prescription Lantus Online
- Long-acting insulin
- Manages blood sugar levels in type 1 and 2 diabetes
- Insulin glargine injection
Lantus is a prescription long-acting insulin medication used to control high blood sugar in adults and children with diabetes mellitus. It’s typically taken once a day, at the same time each day, to provide consistent baseline insulin.
Lantus is a man-made form of insulin that's designed to mimic the body’s natural, background (basal) insulin. This is the type of insulin your pancreas would normally release in small, steady amounts throughout the day and night.
After it’s injected under the skin, Lantus forms tiny crystals that slowly dissolve, releasing insulin gradually over approximately 24 hours. Because it delivers a consistent level of insulin without a pronounced peak, it helps reduce the risk of blood sugar crashes (hypoglycemia).
You may qualify for Lantus if any of the following apply to you:
- You have type 1 diabetes and need long-acting basal insulin as part of your daily insulin regimen.
- You have type 2 diabetes and your blood sugar isn’t well controlled with oral medications alone or with other types of insulin.
- Your provider determines you need a steady, once-daily insulin to help manage fasting or between-meal blood sugar levels.
- You don’t have a history of serious allergic reactions to insulin glargine or its ingredients.
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Dr. Banita Sehgal
Internal Medicine Physician
My approach to healthcare is rooted in building genuine partnerships with my patients.
Taking the time to understand their needs and goals helps us collaborate effectively and find the best path forward together. What I love most about my work is being someone they can count on — familiar, accessible, and focused on their well-being.
Frequently asked questions
Lantus may be right for you if you have type 1 or type 2 diabetes and need a reliable, long-acting insulin injection to help maintain baseline blood sugar between meals and overnight. Be sure to talk to your healthcare provider. They’ll review your A1C levels, daily glucose logs, lifestyle habits, and any side effects or challenges you’ve experienced with your current regimen.
Lantus (insulin glargine) is not right for everyone. While it can be a safe and effective treatment for many people with diabetes, there are some cases where it may not be appropriate.
Lantus may not be suitable for you if:
- You’ve had a serious allergic reaction to insulin glargine or any of the ingredients in Lantus
- You’re experiencing an episode of low blood sugar (hypoglycemia) – Lantus should not be used to treat or correct low blood sugar
- You’re under the age of 6 years old with type 1 diabetes, or have type 2 diabetes as a pediatric patient – Lantus isn’t approved for use in those cases
- You have liver or kidney disease, which can affect how your body processes insulin
- You’re pregnant or breastfeeding – while insulin is generally considered safe, dosing may need to be adjusted
- You’re prone to frequent or unexplained hypoglycemia, or have hypoglycemia unawareness (difficulty recognizing symptoms of low blood sugar)
- You’re using other medications that can impact blood sugar, such as beta blockers, corticosteroids, or certain antidepressants
Yes, Lantus requires refrigeration when it is unused and unopened. Once opened, store Lantus in a dry cool place for up to four weeks.
Lantus and Basaglar are both long-acting insulins containing the same active ingredient (insulin glargine). While the two medications treat the same conditions, they are not interchangeable at the pharmacy.
Lantus should not be mixed or diluted with any other insulin or solution.
Weight gain can occur with any insulin therapy, Lantus included. To help maintain a healthy weight, follow a healthy diet and exercise regularly. Lantus may also be combined with GLP-1 medication, such as Wegovy® or Zepbound®, to help promote weight management. Be sure to speak to your healthcare provider to help determine whether combining Lantus with a GLP-1 medication may be right for you.
No, there isn’t a generic version of Lantus available.
The most common side effect of Lantus is low blood sugar (hypoglycemia). Symptoms of serious low blood pressure may include:
- Shaking
- Sweating
- Fast heartbeat
- Blurred vision
Please be sure to seek immediate medical attention if you experience these, or any other serious symptoms of low blood sugar.
Other possible side effects of Lantus may include swelling, weight gain, low potassium levels, and injection site reactions.
LifeMD offers patients access to licensed healthcare providers who can offer guidance on healthcare concerns. Through our virtual platform, you can schedule same-day appointments and meet with a medical professional from the comfort of your home.
Your healthcare provider may prescribe you a medication if appropriate, and order it to your local pharmacy for your convenience. Skip the waiting room with LifeMD, make an appointment today to get started.
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