What Is GLP-1² (GLP-1 Squared)?

GLP-1² (pronounced “GLP-1 squared”) is a name you may see at DrWell. It sounds like a bigger, better GLP-1, so it is worth being clear about what it is, what is known about it, and what is not. Here is the plain explanation.

What is GLP-1²?

GLP-1² is a compounded medication that combines two active ingredients, semaglutide and tirzepatide, in one prescription, at lower, individualized doses. Both ingredients are used in FDA-approved medications for weight management and type 2 diabetes. Both work on the body’s GLP-1 pathway, and tirzepatide also acts on a second hormone pathway called GIP.

Semaglutide and tirzepatide are not approved as a combination product, and the combination is not a “double strength” version of either one.

Why would a provider combine them?

The idea came from clinical practice. DrWell’s nursing team heard from patients that semaglutide and tirzepatide can feel different. Some patients described stronger appetite suppression with one and a bigger drop in “food noise,” meaning constant thoughts about food, with the other. Combining them at lower doses was proposed as a way to get some of both.

This came from patient conversations, not from clinical trials. It is a clinical judgment, and it has not been proven to work better than either medication alone.

Is GLP-1² FDA approved?

No. GLP-1² is a compounded medication, which means a licensed pharmacy prepares it for an individual patient based on a prescriber’s order. The FDA does not review compounded medications for safety, effectiveness, or quality before they are sold. Compounding pharmacies are regulated by state boards of pharmacy and must follow quality standards, such as sourcing ingredients from FDA-registered manufacturers and testing for sterility. Those standards are not the same as FDA approval.

What does the research say?

There are no published clinical trials testing semaglutide and tirzepatide taken together. Each medication has been studied on its own, and the results for each do not tell us how safe or effective the combination is. That means the right dose, the benefits, and the risks of combining them are not established.

What are the risks?

Because each medication has known risks, combining them can add up. Risks of semaglutide and tirzepatide individually include:

• Digestive side effects, such as nausea, vomiting, diarrhea, and constipation, which may be more intense in combination
• Pancreatitis and gallbladder problems
• Dehydration and kidney injury from vomiting or diarrhea
• Low blood sugar if you also take insulin or certain diabetes medications
• A boxed warning for thyroid C-cell tumors. Neither should be used by people with a personal or family history of medullary thyroid cancer or MEN 2.

They are also not recommended during pregnancy.

Who might be a candidate?

A provider may consider a combination only after reviewing your history, your goals, and what you have already tried. It is generally not a first step. People who have not done well on an FDA-approved option, or who cannot get one, are the ones a provider is most likely to discuss it with.

Can you take semaglutide and tirzepatide together on your own?

No. Do not combine two separate GLP-1 prescriptions, or take extra doses of either, without a provider’s direction. If you are already on one, tell your provider before adding anything.

What should you ask your provider?

• Why is a combination being considered for me instead of a single medication?
• What dose is being used, and how will it change?
• What side effects should I watch for, and when should I call?
• How will you monitor my labs and progress?
• What is the plan if I do not tolerate it?

DrWell and GLP-1²

DrWell offers GLP-1² as a compounded medication, prescribed only if your provider decides it is medically necessary after a visit. Compounded medications are not FDA approved. Your provider will explain the options, including FDA-approved medications, so you can make an informed choice.