Zepbound® Pen (tirzepatide) injection

Zepbound (Tirzepatide) Injection: Comprehensive Overview

Zepbound is an injectable prescription medicine indicated for chronic weight management in adults with obesity (initial body mass index [BMI] of $\ge 30 kg/m^2$) or overweight (BMI of $\ge 27 kg/m^2$) who also have weight-related medical conditions (such as hypertension, type 2 diabetes, or high cholesterol).

Key Product Details

• Active Ingredient: Tirzepatide

• Drug Class: Glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1 (GLP-1) receptor agonist (dual-agonist)

• Delivery Mechanism: Single-dose, pre-filled auto-injector pen (no needle handling required for the patient)

• Administration Route: Subcutaneous (under the skin) injection once weekly, administered in the abdomen, thigh, or upper arm

• Dosage Strengths: Available in six escalating doses: $2.5 mg$, $5 mg$, $7.5 mg$, $10 mg$, $12.5 mg$, and $15 mg$ per $0.5 mL$

Mechanism of Action

Zepbound mimics two natural gut hormones—GIP and GLP-1—that target areas of the brain that regulate appetite and food intake. By activating both receptors simultaneously, it helps:

1. Reduce Appetite: Slows digestion and enhances feelings of fullness (satiety).

2. Manage Blood Sugar: Stimulates insulin secretion and lowers glucagon secretion in a glucose-dependent manner.

Common Side Effects

Most side effects are mild to moderate and typically occur most frequently when increasing the dose. They include:

• Nausea and vomiting

• Diarrhea or constipation

• Stomach (abdominal) pain

• Indigestion and reduced appetite

• Injection site reactions

• Fatigue

Important Safety Information

• Thyroid Tumor Warning: Zepbound causes thyroid C-cell tumors in animal studies. It is unknown if Zepbound causes thyroid C-cell tumors, including medullary thyroid carcinoma (MTC), in humans. Do not use Zepbound if you or anyone in your family has ever had MTC or if you have Multiple Endocrine Neoplasia syndrome type 2 (MEN 2).

• Contraindications: Do not use if you are allergic to tirzepatide or any of the ingredients in Zepbound.

• Pregnancy: Zepbound should be discontinued if pregnancy is detected, as it may cause fetal harm.

Disclaimer: This information is for educational purposes only and should not replace professional medical advice. Always consult a qualified healthcare provider regarding prescription medications and treatment plans.