| Mounjaro | Trulicity | |
| Drug class | Glucagon-like peptide 1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP) receptor agonist | GLP-1 receptor agonist |
| Mechanism of action | Targets GLP-1 and GIP receptors | Targets GLP-1 receptors only |
| Year of FDA approval and indication | Type 2 diabetes (2022) | Type 2 diabetes (2014) |
| Appropriate use | Approved for use in adults only | Approved for use in children 10 years and older |
| Administration | Once weekly injection under the skin | Once weekly injection under the skin |
| Available strengths | 2.5 milligrams (mg), 5 mg, 7.5 mg, 10 mg, 12.5 mg, 15 mg | 0.75 mg, 1.5 mg, 3 mg, 4.5 mg |
Understanding Mounjaro
Mounjaro is a dual-acting GLP-1/GIP receptor agonist. It is designed to mimic the effects of two natural hormones involved in blood sugar regulation. It works by stimulating insulin release when blood sugar levels are high, slowing down digestion to prevent blood sugar spikes and reducing appetite.
By targeting both GLP-1 and GIP receptors, Mounjaro offers a dual-action approach that may provide greater blood sugar control and weight loss compared to similar medications.
Uses
Mounjaro is approved to improve blood sugar control in adults with type 2 diabetes in addition to healthy eating and exercise.
One of its key advantages is its ability to significantly lower hemoglobin A1C levels, a key indicator of long-term blood sugar control. Clinical trials have shown that Mounjaro often leads to greater reductions in hemoglobin A1C compared to other diabetes medications, making it an effective choice for many patients.
The active ingredient in Mounjaro promotes weight loss, which can be particularly helpful for those with type 2 diabetes. Its once-weekly dosing also provides a convenient yet effective approach to improving overall health in people with type 2 diabetes.
Side Effects
The most commonly reported Mounjaro side effects include:
Serious side effects may include:
Those with a personal or family history of medullary thyroid carcinoma (MTC) or those with multiple endocrine neoplasia type 2 (MEN 2) should not take Mounjaro.
Understanding Trulicity
Trulicity belongs to the GLP-1 receptor agonists class of medications. It works by stimulating insulin release when blood sugar levels are high, reducing the release of the hormone that raises blood sugar, and slowing down digestion. This helps prevent blood sugar spikes after meals while also promoting a feeling of fullness.
Trulicity is an effective option for improving long-term blood sugar control and supporting moderate weight loss.
Uses
Like Mounjaro, Trulicity is approved to improve blood sugar control in adults with type 2 diabetes in addition to healthy eating and exercise. Additionally, it can help reduce major adverse cardiovascular events (MACE) such as heart attack and stroke in patients living with type 2 diabetes, established cardiovascular disease, or multiple cardiovascular risk factors.
One of its key advantages is its effectiveness at lowering hemoglobin A1C, helping patients achieve better long-term blood sugar control. In addition to its effects on blood sugar, its active ingredient can support moderate weight loss, which can be beneficial for managing type 2 diabetes and improving overall health.
Side Effects
The most commonly reported side effects of Trulicity include:
- Diarrhea
- Low blood sugar
- Nausea
- Vomiting
Serious side effects may include:
Trulicity should not be taken by those with a personal or family history of MTC or in those with MEN 2 because there may be an increased risk of developing thyroid tumors.
Summary
Mounjaro’s dual mechanism of action may provide stronger effects on blood sugar control and weight loss compared to Trulicity, which focuses solely on GLP-1. However, Trulicity has been available for longer and offers proven effectiveness while also minimizing cardiovascular risks. Switching between Trulicity and Mounjaro may be an option for people with type 2 diabetes depending on their individual treatment needs and goals.
Cost, availability, and tolerability should be considered when working with your healthcare provider to decide if Mounjaro or Trulicity is best for you.
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