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Insulin glargine for Diabetes, Type 1 User Reviews

Brand names: Lantus, Basaglar, Toujeo SoloStar, Lantus SoloStar, Semglee, Toujeo Max SoloStar, Rezvoglar

Insulin glargine has an average rating of 3.0 out of 10 from a total of 85 reviews for the treatment of Diabetes, Type 1. 18% of reviewers reported a positive experience, while 74% reported a negative experience.

Insulin glargine rating summary

3.0/10 average rating

85 ratings from 94 user reviews.

Compare all 60 medications used in the treatment of Diabetes, Type 1.

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Reviews for Insulin glargine

  • Nita
  • May 9, 2019

Basaglar (insulin glargine) "I was on Lantus for about 8 year's and was forced to take Basaglar due to insurance issues. Since the swap to Basaglar I've already had two diabetic seizures in the last few weeks due to my blood sugar dropping to the 30's in the morning, yes...my blood sugar was 32 this morning, I cover carbs with novolog but stopped covering my evening food and before bedtime snacks so it wouldn't drop and it still did. I lowered the dose time after time and ate a ton of carbs before bed and I still almost died, however it doesn't lower my sugar later in the day I have to cover my meals with twice the fast acting as I normally would. They need a lawsuit formed against them for making this stuff."

1 / 10
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50 Report
  • Diabe...
  • Taken for 6 months to 1 year
  • June 13, 2019

Basaglar (insulin glargine) "I was put on basaglar by my insurance company who was refusing to pay for Lantus. I have never been sicker in my life! I take so much more short-acting insulin all day long and wake up in the 2 to 300 range everyday. This has to be at placebo! It's being forced on us because it is cheaper but how much cheaper could it be if it is not working!"

1 / 10
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47 Report
  • Dextor
  • Taken for 1 to 6 months
  • September 18, 2019

Toujeo SoloStar (insulin glargine) "My endo switched me from Lantus to Toujeo about 8 weeks ago. It has been a disaster for me ever since switching. I have extreme highs and lows. I go to bed with blood sugar normal and wake up with it approaching 275 or higher. Occasionally I have a high blood sugar and will take a humalog correction, OFTEN with no effect. I constantly have high blood sugars for most of the day. This did not happen when I was taking Lantus. Now the only times I can have steady blood sugars on Toujeo is when I don’t eat! This is unacceptable! I do agree with some other comments here: Toujeo is a substandard insulin and should be taken off the market IMMEDIATELY! BTW, I am a type1 diabetic since 1977. Toujeo is terrible!!!!"

1 / 10
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45 Report

Frequently asked questions

  • human...
  • Taken for less than 1 month
  • February 20, 2022

Semglee (insulin glargine) "My awful insurance company stopped covering Lantus on January first, with no warning to me. When I went to pick up Lantus the pharmacist instead gave me Semglee, a totally unknown drug to me. I did not want to take Semglee. I have many food and drug allergies. I have waited a month to hear from the insurance if they will still allow me to get Lantus because of my allergic reaction concerns upon switching to Semglee. I finally ran out of Lantus today, and tried Semglee. Redness and radiating soreness at injection site, dizzy, feel faint. I took a reduced dose from my Lantus dose out of fear of a bad reaction. That was a good call. I am not taking this again. Will just use (higher doses) Novolog, without a supporting long-lasting insulin. Crappy insurance company changes my Lantus after 20 years of successful use. I hope they are happy with their extra money."

1 / 10
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22 Report
  • qwerty
  • January 14, 2019

Basaglar (insulin glargine) "Recently switched from Levemir to Basaglar with a new job & new insurance. Like everyone else -- I have NO idea how this insulin was approved for T1D use. Seriously baffled. I have the Dexcom G6 CGM, so I'm painfully aware of just how bad it is. Every day I wake up & watch my sugar climb to 250 while fasting. I desperately shoot Novolog well into the late afternoon until I finally reach the some normalcy. Even still I can't eat a salad with four and a half croutons without my sugar climbing to 300, even with dosing well in advance. This is really blowing my mind, I'm pretty sure it's just water. If I don't get Levemir back the only way I can see myself staying out of DKA is a practically no carb diet. I'm just out here screaming into the void..."

1 / 10
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40 Report

Are you taking this medicine?

  • Basag...
  • April 8, 2019

Basaglar (insulin glargine) "I was taking Lantus for years without any problems or side effects. Then the insurance company forced me to switch to Basaglar. As soon as I started taking it, it was making me sick with flu-like symptoms. I stopped taking it for a few days to see if it was the insulin that was causing it, and it was. The symptoms went away as soon as I stopped taking Basaglar, and then when I started taking it again, the symptoms came back. Basaglar IS TRASH. Pharmaceutical and insurance companies try to tell you that Basaglar is pretty much the same thing as Lantus, but that's NOT TRUE."

1 / 10
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35 Report
  • Anonymous
  • Taken for 6 months to 1 year
  • May 12, 2023

Semglee (insulin glargine) "Was switched from Lantus to Semglee. Severe rash, itching all over body. Injection sites burn with rash and sores. I hate this stuff. Take it off the shelves. Going back to Lantus. Insurance companies should be held liable for making people change to this junk."

1 / 10
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More FAQ

  • Altaira
  • September 26, 2010

Lantus (insulin glargine) "Lantus has been a miracle for me. Prior to using it, my blood sugars were completely out of control. My numbers were so high at times, they wouldn't even register. I did everything my doctor told me to with no success. When I was taking R and N insulin, I'd have extreme highs and lows with my blood sugars. There simply was no regulation. Lantus so far has leveled out my blood sugar levels. I take it in conjunction with Humalog. Between the two, most of the spikes I've experiences have stopped. Although with the Humalog, I do have to be careful with hypoglycemic events. The combination of the two insulins is the only thing that's ever helped me. And I've been on everything you can imagine. It looks like I'll finally control my diabetes."

10 / 10
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66 Report
  • Maddy
  • August 9, 2019

Basaglar (insulin glargine) "This med Basaglar is nothing like Lantus. My 12 year old Granddaughter was forced to switch from Lantus to Basaglar 8 months ago. The insurance will not pay for Lantus that she had been using for previous 2 years. Within a week of using we knew this medication was not working and was causing her side effects. Her Day time glucose levels were very high. We had to double her short acting insulin. At night time her levels are dropping to 40 every few hours. The pen injector malfunctions frequently, jams, and I am convinced dispenses incorrect amount of units. I have to wake her up & load her with carbs to get her levels back up 2-4 times each night. If it were not for her Dexcom G6 alarm I honestly think she would die in her sleep. She has headaches, abdominal pain, back pain, and leg cramps daily. She has respiratory issues every since starting the med."

1 / 10
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30 Report
  • Dee
  • Taken for less than 1 month
  • December 25, 2018

Basaglar (insulin glargine) "I've been on Basaglar for exactly 1 week now. Before I was taking Toujeo. In this one week alone I've been hospitalized for DKA (Diabetic ketoacidosis) and now I am experiencing facial swelling and hives. Yesterday I woke up with my blood sugar (BS) at 114 and decided to fast for most of the day to see if that would help keep me stable. Over the full 24 hours I ate 2 apples and a little bit of quinoa. Before bed my BS was at 524, which is much higher than it was when I went in for DKA. This stuff is not working, its breaking me out, and it is making me fear for my life. Today is Christmas and I am considering not eating at all because I do not wish to go into a coma. Thanks Basaglar. I'm so frustrated right now I have to fight to get my old meds back."

1 / 10
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30 Report
  • Qimmu...
  • Taken for 5 to 10 years
  • December 13, 2012

Lantus (insulin glargine) "I have diabetes Type 1 with insulin resistance. Works well. I use 200u/day, 100 AM, 100 PM. It can burn quite a bit when injected, this is because Lantus is fairly acidic with a pH of around 4. When the low pH hits the higher pH of the body, it forms microscopic crystals that are absorbed slowly. This precipitating action that causes the burn as well as makes Lantus a long-acting insulin. It helps me to inject the 100 units in 2-3 sites so less goes in per site. Also be sure to leave the needle in for 15-30 seconds to avoid leakage. I'm a chemist by trade."

8 / 10
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52 Report
  • Jay
  • Taken for 1 to 6 months
  • April 15, 2019

Basaglar (insulin glargine) "I was taking Lantus for years when my insurance made me switch to Basaglar. They told me Basaglar is pretty much the same as Lantus and just a cheaper generic version. But I had nothing but problems with Basaglar. As soon as I started taking it I was having flu like symptoms that never subsided. Basaglar is horrible and needs to be taken off the market"

1 / 10
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27 Report
  • Basag...
  • April 10, 2019

Basaglar (insulin glargine) "Insurance company forced me to switch from Lantus to Basaglar. Over the course of several years of using Lantus, I had no problems. But with Basaglar, as soon as I started taking it, I had flu-like symptoms that never subsided. Every night I was having stomach problems. I hope Basaglar gets taken off the market, because it's pure garbage"

1 / 10
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24 Report
  • Bags
  • Taken for less than 1 month
  • August 7, 2018

Basaglar (insulin glargine) "My insurance company made me wwitch to Basaglar from Lantus. Worked ok for about 2-3 weeks then my blood sugars were all over the place. Switched back to Lantus (after having to fight my insurance to cover it) and my blood sugars were perfect again. I wear a Continuous Glucose Monitoring (CGM) System and would watch my sugars not remain constant and pin ball on Basaglar. Ever since I switched back to Lantus they are perfect again. Do. Not. Switch. To. Basaglar."

1 / 10
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26 Report
  • Henry
  • Taken for less than 1 month
  • February 12, 2019

Basaglar (insulin glargine) "My son asked "Dad, could this new insulin be a placebo?" His blood sugar was consistently high on Basaglar. He increased the dose, but it did not help. He has a continuous glucose monitor (CGM), so he's very aware of how things are going. My other son had a different experience -- very inconsistent blood sugar levels. He had both highs and lows while on Basaglar that were unexplained by other things. He has a CGM too, so it was pretty clear what happened after the switch. I believe in the FDA process and generics or biosimilars or whatever they're called. But Basaglar didn't work for us. Back on Lantus now and back to normal."

2 / 10
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24 Report
  • Lis
  • Taken for 1 to 6 months
  • October 18, 2019

Basaglar (insulin glargine) "This Basaglar insulin doesn't work for me at all. I'm very disappointed because my blood sugar levels are erratic. I can't eat if my blood sugar reading is 269 or even higher. I'm always hungry and don't feel healthy having stomach aches very often . I hope this nightmare will end and this impotent insulin will be taken off the market . What a garbage ."

2 / 10
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21 Report
  • Totally...
  • Taken for less than 1 month
  • May 20, 2019

Toujeo SoloStar (insulin glargine) "I have been on Toujeo for two weeks and my sugars have been disappointing to say the least! My sugar was 113 @ BT and waking was 260!!! I have to take way too much N to cover my blood sugar during the day/ after meals to makeup for the Toujeo not effectively working! My chest has been hurting from stressing out & my blood sugars have been so unstable with this new insulin. I HIGHLY DO NOT RECOMMEND THIS TOUJEO FOR ANY TYPE 1 DIABETICS! PLEASE REMOVE FROM SHELF AND SAVE LIVES."

1 / 10
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22 Report
  • Mike
  • Taken for 1 to 6 months
  • November 3, 2019

Basaglar (insulin glargine) "I was taking Lantus and it worked very well. Forced to change because of health plan and now I have very high blood sugars all of the time- never in range since switching. BASAGLAR DOES NOT WORK. Health plan said they were saving 25 million- I wonder why."

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20 Report
  • Elly...
  • December 25, 2017

Toujeo SoloStar (insulin glargine) "Do not use this insulin! It needs to be recalled asap! The first few months I was on it were fabulous, rock steady blood sugars. Last week all of a sudden it stopped working for me. I tried multiple batches and this was not a refrigeration or site injection issue. Other type ones have gone through this same issue. There is an article on diabetes daily toujeo-insulin-the-problem-i-had-with-this-insulin I understand that some may enjoy it, as I did, but it is unpredictable and not safe for use. How this is even on the market is beyond me. Do not use!"

1 / 10
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26 Report
  • RWR
  • Taken for 1 to 2 years
  • January 10, 2019

Basaglar (insulin glargine) "My medical aid in 2018 forced the Basaglar insulin (long working) as the only insulin they will fully cover on my medical aid plan/cover. I previously used Protaphane insulin as long-acting insulin. Since I used Basaglar insulin my daily usage of both the long- and short-acting (Humalog) insulin has increased dramatically. When I started with Basaglar insulin I have kept it to the similar dosage as I used with the Protaphane insulin but I was shocked that the Basaglar insulin do not worked as the Protaphane insulin. To kept my sugar levels between 6 and 10, I had to almost double my usage with the Basaglar insulin. The Basaglar insulin had a negative impact on my health as I was forced by my medical aid provider to only use Basaglar insulin. My review is that the Basaglar insulin is the worst insulin I have ever used."

1 / 10
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22 Report
  • Rich
  • August 2, 2019

Basaglar (insulin glargine) "Like everyone else my insurance company forced me to switch from Lantus to Basaglar. Within a week I had a strange rash on my torso. Only recently did a biopsy conclude that it began when I began Basaglar. Other side effects for me are extreme exhaustion and decline in muscle strength. Instability walking and serious weight gain. In the past 18 months I have been totally unable to control my blood sugars and it is taking a toll on my health. I am now having to fight with my insurance company to cover Lantus. "

1 / 10
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18 Report
  • Mmm
  • Taken for 1 to 6 months
  • July 6, 2019

Basaglar (insulin glargine) "Not sure if its purely due to basaglar, but ever since I've taken this medication I've been getting respiratory infections after stopping this medication the infections disappeared. I was on antibiotics weeks after weeks so at this point I'm going to blame poor quality of this product. This insulin is just not worth the damage; "flu like" symptoms is honestly the best way to explain it. The way the medication is metabolized by the body definitely has an issue somewhere more R&D should've been done. Please Eli Lily this product is very unpredictable compared to other insulins (levemir/lantus/humulin) its most definitely not as aggressive as lantus is. It also seems to not work very well with novolog in my experience its like gambling."

1 / 10
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17 Report
  • Jenn
  • Taken for 2 to 5 years
  • January 15, 2019

Basaglar (insulin glargine) "Basaglar has been a bad experience for me. I've been on it for 2 years now and my blood sugars are much more unpredictable and higher than previously when taking Lantus. I hope to get an insurance that will cover Lantus again!"

2 / 10
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17 Report
  • Attila
  • Taken for 6 months to 1 year
  • December 21, 2020

Toujeo SoloStar (insulin glargine) "Do NOT use Toujeo SoloStar for diabetes treatment. I have been using this insulin for more than half a year now, and I can say with certainty: Toujeo SoloStar is dangerous. My rating is 2, because using it is still better than dying without insulin(I have type 1 diabetes). Although I do not understand how this product has been approved for use. I have diabetes for more than 20 years now, and not once have I experienced a base insulin misbehave so much as the Toujeo SoloStar. The effects range from severe hyperglycemia (> 20 mMol/L) to persistent hypoglycemia (< 3.0 mMol/L). Persistent, because even eating 60g of carbohydrates barely raises my blood sugar level. So basically this thing is unpredictable. After some searching I found that I am not the only one experiencing the above problems. TL;DR Do NOT use Toujeo SoloStar, its effects are unpredictable."

2 / 10
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12 Report
  • Bri
  • Taken for less than 1 month
  • October 2, 2019

Basaglar (insulin glargine) "It’s terrible I just started last night and my experience is horrible this should be recalled my stomach has the worst cramps ever, I can’t sleep my glucose is very high, I feel extremely sluggish. In the morning I’m going to get back on lantus this medicine is like a poison"

1 / 10
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15 Report

Reviews may be edited to correct grammar/spelling or to remove inappropriate language and content. Reviews that appear to be created by parties with a vested interest are not published. This information is not intended to endorse any particular medication. While these reviews may be helpful, they are not a substitute for the expertise, knowledge, and judgement of healthcare professionals.