Lantus

(insulin glargine)

3.7/ 5 average rating with 584 reviewsforLantus
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Lowers blood sugar.

Skip Upsides & Downsides section. Skip to side effects section.

Our bottom line

Lantus (insulin glargine) is an effective, long-acting insulin that provides all-day blood sugar control, but it can cause low blood sugar levels, so be sure to have a source of sugar nearby.

Lowest price near you
  • Price before coupon
    $418.26
  • Lowest price with coupon
    $295.26
  • Savings
    29%
Quick facts about Lantus
  • Drug class: Endocrine
  • Rx status: Prescription only
  • Generic status: No lower cost generic available

Upsides

  • Insulin is one of the most effective blood sugar-lowering medication and can lower your A1c (average blood sugar over time) by up to 2-3%.
  • Lantus (insulin glargine) is a long-lasting insulin that provides consistent, all-day sugar control with just once or twice daily dosing.
  • Dose can be easily adjusted to make a customized regimen that's tailored to your body's needs.
  • Lantus (insulin glargine) can be used with liver or kidney problems.
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What to expect from Lantus, on one page

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People’s experience with Lantus

584reviews so far. What do you think?

Downsides

  • You have to take insulin by injection.
  • You have to check your blood sugar regularly to assure your medications are working.
  • You may gain some weight, around 4-6 pounds.
  • You have to maintain a consistent schedule to avoid low blood sugar episodes. Dramatic changes in weight or meal patterns will require dose adjustments.
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What to expect from Lantus, on one page

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How it works

Lantus (insulin glargine) is a long-acting synthetic insulin for diabetes. It acts the same way as the insulin your body produces to break down sugars and fats.

Quick facts about Lantus
  • Drug class: Endocrine
  • Rx status: Prescription only
  • Generic status: No lower cost generic available

Dosage forms

  • Injection
People’s experience with Lantus

584reviews so far. What do you think?

Prices and coupons

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What to expect when you take Lantus (insulin glargine) for Diabetes

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  • First few hoursHours
    First few daysDays
    First few weeksWeeks
    First few monthsMonths
  • Effectiveness
  • Full effects
  • First few hoursHours
    First few daysDays
    First few weeksWeeks
    First few monthsMonths
  • Possible side effects
  • Low blood sugar
  • Flu
  • Swelling in the limbs
  • Weight gain
  • Cough
  • Injection site reactions
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Side effect rates for Lantus (insulin glargine)

From 849 clinical trials of Lantus when taken for diabetes
  • Upper respiratory tract infection
    28%28%
  • Swelling in the limbs
    20%20%
  • High blood pressure
    20%20%
  • Flu
    19%19%
  • Sinus infection
    19%19%
  • Cataracts
    18%18%
  • Inflammation of the airways
    15%15%
  • Joint pain
    14%14%
  • Pain in extremity
    13%13%
  • Back pain
    13%13%
  • Cough
    12%12%
  • Upper respiratory tract infection
    11%11%
  • Urinary tract infection
    11%11%
  • Diarrhea
    11%11%
  • Depression
    11%11%
  • Infection
    10%10%
  • Headache
    10%10%
  • Blood vessel disease
    7%7%
  • Retinal vein disorder
    6%6%
  • Injection site pain
    3%3%
0%
10%
20%
30%
40%
50%
60%
70%
80%
Where we got our data »

The placebo bar shows how common a side effect was for people taking a sugar pill instead of Lantus.

Lantus (insulin glargine)
Placebo

People taking Lantus felt side effect more

People taking Lantus felt side effect less

No difference

Risks and Warnings for Lantus (insulin glargine)

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    • Higher risk if:
    • Insulin dose too high
    • Use of other blood sugar lowering medicines
    • Poor injection techniques

    Very low blood sugar is life-threatening. Recognize the symptoms of low blood sugar, which include fast heartbeat, sweating, pale skin, feeling shaky, confusion or irritability. Make sure you have access to easy sugar sources to treat your low blood sugar episodes.

Pharmacist Q&A

Lantus (insulin glargine) questions for

Frequently Asked Questions

Lantus is prescribed to adults with type 2 diabetes.

Who is this drug for?

Lantus is prescribed to adults with type 2 diabetes.

Common concerns from people taking Lantus (insulin glargine)

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Food
  • Changes in meals or exercise regimen can cause fluctuations in your blood sugar. Try to maintain a consistent schedule and take Lantus (insulin glargine) at same time each day.
  • Worth it
    Low hassle
    Reviewed Lantuson 3/19/2017If taken at night, snack or small bolus before bed
    19
    Man
    Two years or more
    Type 1 diabetes
Kidneys and liver
  • Lantus (insulin glargine) can be used with liver or kidney problems.
Pain
  • Not worth it
    Some hassle
    Reviewed Lantus Solostaron 2/13/2018Yes, to be informed that it can give you joint pain. right now I have pain in my left hand. Every day I get up with pain in my middle finger. I didn't have joint pain before taking Lantus.
    64
    Woman
    A year or so
    Would rather not say
Weight
  • You may gain some weight, around 4-6 pounds.