Desperately need some advice!

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New Member

Date Joined May 2007
Total Posts : 1
   Posted 5/11/2007 11:44 AM (GMT -7)   
smurf I have just started Byetta. I have been on 2-500mg og Metformin/Glyburide morning and evening, Starlix with each meal, and 20 U Lantus in AM and 20 Units Humulin 70/30 in evenings. I kept me oral meds, but stopped my insulin due to advisement from Byetta reccomendations. My BS went UP to and above the 200 range (had been in low 100s).

I have read MANY things on the forum and only found a couple mentions of using insulin WITH Byetta. I tried a lower dose of H70/30 last evening and it helped some. My main question is, if I take any of my insulin with my Byetta, what and at what times should I do it?

I desperatly need some advice. Care providers are as new to this treatment as we are, what do you folks out there say?


(I added a subject so more people will know what your post is about and perhaps can help you.~Jeannie)

Post Edited By Moderator (Jeannie143) : 5/18/2007 8:28:27 AM (GMT-6)

Veteran Member

Date Joined May 2006
Total Posts : 547
   Posted 5/18/2007 12:05 PM (GMT -7)   
I did some searching on Byetta with insulin and found one thing I can confirm you mentioned....Byetta should not be used with insulin. Did you decide to take the 70/30 or was that on the advise of your doctor? I get the impression that you may be self-medicating as I'm pretty certain your doctor would've instructed you on how/when to take all your meds, including insulin with Byetta. This is not a good idea if you are making these kinds of decisions on your own and although we here can try to help by sharing our experiences...none of us are doctors. You need to get his advice first and foremost. If you aren't satisfied with his experience, ask to be referred to an (another) Endocrinologist. Good luck.
- Phishbowl (Type 1 since Jan'05 - Levemir, NovoRapid)
"What's Not Measured Is Not Managed"

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New Member

Date Joined May 2007
Total Posts : 1
   Posted 5/23/2007 7:00 PM (GMT -7)   
I was on Lantus 25units at bedtime, 2500 mg glucophage, 15 mg Actos and 2 mg Amaryl when I started on Byetta. My doctor told me to reduce the Lantus and Amaryl doses by half, which I did.

During the month on the 5 pen, I also stopped taking the Actos, and have reduced the glucophage by 500mg. Each week I've taken away another drug to see what would happen.

I tested my blood sugar 6 times a day so that I knew what the Byetta was doing in combination with the other drugs.

I started on the 10 pen this past week. I stopped taking the Amaryl altogether, and kept everything else the same.

Because it takes a week or so, I discovered, for the Byetta to really kick in, I'm not changing anything else until I've been using the 10 pen for a week. My sugars have been between 90 and 130, depending on what I eat and when. My morning sugars have been between 100 and 140, BUT this morning, my fasting BS was 137 and my 2-hour post-breakfast test, it was 106!

The FDA has not approved Byetta use with Lantus, but on my other forum (, there are other people who are on both drugs.

And I know that endocrinologists prescribe both -- and are not very happy that their patients cannot get Byetta under their insurance while they are also taking Lantus. Byetta was not approved by the FDA when taken with Lantus because the Byetta manufacturer did not test Byetta with Lantus (or other insulins) -- just with Metformin and hypoglycemic agents.

I don't understand why you are taking your Lantus in the morning. Lantus is a basal insulin, designed to be taken at night before bedtime by people whose fasting blood sugars are always high.

I have read about people SPLITTING the dose of Lantus so that they did not get hypoglycemia during the night, but I have NEVER heard of anyone taking it in the morning. It's designed to be taken before a sleep period, as far as I know, and at no other time. I tried splitting my dose once because it is so effective in lowering my fasting blood sugar. It didn't work -- it only works for me if I take it before I go to bed.

I would suggest you read the package insert on your Lantus and then ask your doctor WHY you are taking it in the morning instead of at bedtime.

My doctor suggested when I started the 5 pen that I reduce my night-time Lantus and morning Amaryl by half since those drugs are hypoglycemic agents.

In my month on 5, I had one serious hypoglycemic incident after taking my Lantus at night - I decided the Byetta "wasn't working" and went back to my original doses of Amaryl and Lantus, and 15 minutes after my night-time Lantus my blood sugar dropped below 50 and stayed there almost half an hour, even though I was drinking juice, eating candy, etc. to get it back up.

So you have to be very careful with the Lantus and not take too much while you're taking Byetta -- and you have to test frequently and keep hard candy or something around in case it looks like your sugar is going to drop until you know the effect of taking both drugs.

Again, I don't know why you're taking it in the morning instead of at night.

But I would talk to your doctor again about your high blood sugars and possibly adding Lantus at night in a low dose to see if that helps.


Regular Member

Date Joined Dec 2006
Total Posts : 234
   Posted 5/24/2007 4:03 AM (GMT -7)   
I know several people who take Lantus in the morning instead of at night. There are different reasons why some doctors choose to put a patient on it in the morning instead of at night. It is, however, most commonly used at night or split.
What doesn't kill you makes you stronger.  Shouldn't I be invincible by now?

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