What insulin can I use in the t:slim X2 pump?

The t:slim X2 pump is indicated for use with NovoLog/NovoRapid or Humalog U-100 insulin.

I can only get Admelog from my insurance company/HCP. Can I use it in your pump without voiding my warranty?

It is important to note that Admelog is not approved by the FDA for use in Tandem products, and we have not tested the safety or efficacy of this insulin when used in our pumps. If your health network and/or insurance company requires that you use Admelog in your pump and you begin experiencing persistent issues that can be attributed to insulin compatibility, we can’t guarantee your warranty will be honored. We strongly recommend that you contact your healthcare provider and/or insurance company to let them know that Admelog is considered off label for your pump and request permission to use Novolog or Humalog U-100 insulin instead.

Are you going to do compatibility testing for Admelog so that it can be used in your pumps?

Insulin compatibility testing can take a year or longer to complete. We have not determined if or when we would undertake the process of updating our labeling to include Admelog.

Can I use newer, fast-acting insulins, like Fiasp, in your pumps?

Tandem pumps and cartridges are only indicated for use with Novolog and Humalog U-100 insulins. The safety and efficiacy of other insulins, including Fiasp, have not been established for use with Tandem insulin pumps.

Importantly, clinical studies using our automated insulin delivery algorithms were only conducted using Humalog and Novolog U-100 insulins, which have different times of onset compared to Fiasp.

What happens if I use Fiasp in my pump anyway?

Tandem pumps and cartridges are only indicated for use with Novolog and Humalog U-100 insulins. Importantly, clinical studies using our automated insulin delivery algorithms were only conducted using Humalog and Novolog U-100 insulins, which have different times of onset compared to Fiasp.

If you use Fiasp in your pump and you begin experiencing persistent issues that can be attributed to insulin compatibility, we can’t guarantee your warranty will be honored.

Do you have plans to expand your pumps’ Indications for Use to include Fiasp?

We do not have immediate plans to seek approval for use of Fiasp in our pumps.

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