Lantus not working!

K

Kathy v

Member Since 2026
My sweet baby , Bob, was diagnosed with diabetes on April 13 and immediately started on Lantus. He is only 6 years old. I haven’t been able to get him out of the 300s even with slow adjustments. He is now on 2.5 units twice a day. Initially his symptoms subsided greatly but now they are back, urination, thirst. I have been doing a curve every 4-5 days and no real progress. I don’t want to give up on Lantus because I have read it is the gold standard, but it’s been 2 1/2 months and I’m getting scared. Any suggestions?
 
Hi Kathy, Sorry to hear you're struggling to get Bob's numbers down. Do you have a spreadsheet you can share so that folks can see how the numbers have been going? Also, don't be surprised if your post gets moved to the main forum; the moderators prefer people to post there first.
 
Kathy v said:
How do I move it to the main forum? I need help! Please.
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It's okay--you don't need to move it (actually you can't). I just wanted to mention it in case they do move it. Are you keeping up with Bob's numbers on a spreadsheet? I know when someone more experienced pops in here they are going to ask you about that, so I wanted to go ahead and get that information gathered for them.
 
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And if you don't have a spreadsheet, that's okay too. We'll get you set up with one so that you can track his numbers (whether you stay on the forum or not). We're very data driven here on the forum, and the spreadsheets give us a picture of daily bg numbers along with increases/decreases. That information is essential in order to identify issues and offer guidance, if necessary.
 
Mary & Jude said:
And if you don't have a spreadsheet, that's okay too. We'll get you set up with one so that you can track his numbers (whether you stay on the forum or not). We're very data driven here on the forum, and the spreadsheets give us a picture of daily bg numbers along with increases/decreases. That information is essential in order to identify issues and offer guidance, if necessary.
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I don’t have one but I would greatly appreciate it if you can help me with that. I have all of his numbers written down very accurately so I have the information but not a spreadsheet. Please help me. I feel like every day that goes by more damage is being done because I can’t regulate him.
 
Hello and welcome. Some cats need larger doses of insulin. 2.5 units isn't very large. My girl got up to 8.75 units of Lantus. Once we see your spreadsheet data, we'll be able to help you more on dosing. Tagging @Marje and Gracie to help, though she has a big volunteer gig on Saturdays so it might take a minute to get to you.

In the meantime, I recommend you read the yellow starred Sticky Notes at the top of this forum: Lantus / Levemir / Biosimilars. If you want our help with dosing we'll need you to eventually decide which dosing method you want to use. They are described in one of those Sticky Notes.

A few questions from me, how did you figure out he needed to see the vet? What symptoms was he showing? Does he have any other medical conditions?

And most important, what food are you feeding him?
 
Kathy v said:
I don’t have one but I would greatly appreciate it if you can help me with that. I have all of his numbers written down very accurately so I have the information but not a spreadsheet. Please help me. I feel like every day that goes by more damage is being done because I can’t regulate him.
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We will definitely help you with the spreadsheet! I'm going to tag @Marje and Gracie who will be able to set up the spreadsheet for you. She is not always on the forum on Saturday until later in the day, but she'll get to you asap.
 
Wendy&Neko said:
Hello and welcome. Some cats need larger doses of insulin. 2.5 units isn't very large. My girl got up to 8.75 units of Lantus. Once we see your spreadsheet data, we'll be able to help you more on dosing. Tagging @Marje and Gracie to help, though she has a big volunteer gig on Saturdays so it might take a minute to get to you.

In the meantime, I recommend you read the yellow starred Sticky Notes at the top of this forum: Lantus / Levemir / Biosimilars. If you want our help with dosing we'll need you to eventually decide which dosing method you want to use. They are described in one of those Sticky Notes.

A few questions from me, how did you figure out he needed to see the vet? What symptoms was he showing? Does he have any other medical conditions?

And most important, what food are you feeding him?
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He had all the symptoms, large amounts of urine, increased thirst and he lost 6 lbs.
we are feeding him fancy feat pate. And purinompro plan dm dietetic . No other medical conditions.
 
Kathy v said:
He had all the symptoms, large amounts of urine, increased thirst and he lost 6 lbs.
we are feeding him fancy feat pate. And purinompro plan dm dietetic . No other medical conditions.
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I don’t see the yellow starred sticky notes. Where are they?
 
Welcome. I can see your spreadsheet. For some reason the colors are not there. It is important to get at least one test during the night cycle as cats often go lower at night.
 
tiffmaxee said:
Welcome. I can see your spreadsheet. For some reason the colors are not there. It is important to get at least one test during the night cycle as cats often go lower at night.
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By night cycle, do you mean later than 8pm? I am literally at my wits end, so stressed. I have had two diabetics, one cat and one dog and now my good boy ,Bob. The others did well on nph but I have read that that is not a good insulin for cats. Please help. Bob is only 6 years old and my heart is breaking to think it is my incompetence that will cut his life short. I need to get him regulated. I will do another curve tomorrow. I will post the results here. If he is still in the 300s I will increase by 0.5.
 
Kathy, Are you testing Bob before each shot? You should be doing this if you aren't. That's going to tell you what his blood glucose is, and let you know if it is safe to give him a shot. Also, are you shooting at night? Lantus should be administered twice a day, 12 hours apart.

I cannot believe this is your THIRD diabetic animal. I'm so sorry!! I'm not sure why you are concerned about your "incompetence." It appears to me that you are doing everything you possibly can to help Bob, and that is completely competent.
 
Mary & Jude said:
Kathy, Are you testing Bob before each shot? You should be doing this if you aren't. That's going to tell you what his blood glucose is, and let you know if it is safe to give him a shot. Also, are you shooting at night? Lantus should be administered twice a day, 12 hours apart.

I cannot believe this is your THIRD diabetic animal. I'm so sorry!! I'm not sure why you are concerned about your "incompetence." It appears to me that you are doing everything you possibly can to help Bob, and that is completely competent.
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Thank you for your kind words. Yes I am testing him before each shot, he is always in the 300s. I am shooting every 12 hours. Nobody can believe it, not even my vet. I guess I am the chosen one. I feel incompetent because my dog and other cat were regulated pretty quickly. I don’t know what is going wrong this time.
 
Bless you, my friend! I'm not sure why you are the chosen one either, but I hope I'm not ever the chosen one 😜 because feline diabetes is so difficult to treat. One diabetic animal is a gracious plenty for a lifetime.

Okay, so on the spreadsheet, where it has AMPS and PMPS that stands for AM preshot and PM preshot, and that is the preshot number. So when you perform the preshot test, you'll put that number in that cell. Each cell stands for an hour from the preshot number.

I'm going to ask you to take a few minutes to complete your signature and link your spreadsheet in it. Here are the directions: Sticky - New? How You Can Help Us Help You!. Scan down to the section on setting up a signature. This information is super important as people look at your posts.
 
Kathy v said:
By night cycle, do you mean later than 8pm? I am literally at my wits end, so stressed. I have had two diabetics, one cat and one dog and now my good boy ,Bob. The others did well on nph but I have read that that is not a good insulin for cats. Please help. Bob is only 6 years old and my heart is breaking to think it is my incompetence that will cut his life short. I need to get him regulated. I will do another curve tomorrow. I will post the results here. If he is still in the 300s I will increase by 0.5.
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When I looked at your spreadsheet it was blank at night. Unless the +3 is a lot lower than the preshot you won’t need more tests at night. We often say it’s a marathon and not a race. You will get plenty of support here.
 
Kathy v said:
By night cycle, do you mean later than 8pm? I am literally at my wits end, so stressed. I have had two diabetics, one cat and one dog and now my good boy ,Bob. The others did well on nph but I have read that that is not a good insulin for cats. Please help. Bob is only 6 years old and my heart is breaking to think it is my incompetence that will cut his life short. I need to get him regulated. I will do another curve tomorrow. I will post the results here. If he is still in the 300s I will increase by 0.5.
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Hi Kathy! Welcome! You’re getting a lot of really great advice here. I just wanted to say - while it’s incredibly overwhelming at first, there’s so many knowledgeable and supportive people at FDMB. You’re definitely in the right place. While I can’t point to my cat Moonie as we’re still in the process of working towards regulation, there are so many members here whose cats started out with very bad numbers, DKA, and/or multiple ER visits who worked their way towards tight regulation and even remission.

Even for my cat Moonie, in the short time we’ve been following TR, we’ve seen huge improvement. We never used to see a number below 300, much like your kitty, and since then while it’s not consistent, we’ve seen so many blues (below 200) and even greens (below 100).

So please don’t lose hope. Also incompetence is the last word I would use to describe anyone who loves their kitty enough to be overcoming the steep learning curve of feline diabetes and asking questions on this forum.

I hope that you’ll feel welcomed and supported and heard here. This is such a wonderful community where so many people share their knowledge and root for every cat and caregiver.
 
From what I see on the spreadsheet, Bob is seeing some numbers in the 100's. That is great! The Lantus is working. We determine how to change the dose based on the nadirs, or how low Lantus is taking him, not the preshot values. I see by the dates that it looks like you aren't testing every day? Please don't increase the dose again until we can see more data on this dose.
 
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