What are the weight loss injections?

Weight loss injections are prescription medications delivered via under-the-skin shots (subcutaneous injections) that help people lose weight by controlling appetite, improving blood sugar, or slowing digestion. They’re typically recommended for individuals who have a BMI of 30 or higher, or 27+ with obesity-related conditions such as high blood pressure, diabetes, or PCOS.

These injections work best when combined with healthy eating, regular movement, and stress management, and can lead to 10–20% or more total body weight loss over time.

1. Semaglutide (Wegovy, Ozempic)

Semaglutide is currently the most well-known and FDA-approved weight loss injection.

• Brand names: Wegovy (approved for weight loss), Ozempic (approved for diabetes but used off-label for weight loss)
• How it works: Mimics GLP-1, a hormone that controls hunger and slows digestion
• How it’s taken: Weekly injection under the skin
• Results: Up to 15% of total body weight lost in clinical trials
• Common side effects: Nausea, constipation, fatigue, headaches
• Who it’s for: Adults with obesity or weight-related health conditions

2. Tirzepatide (Mounjaro, Zepbound)

Tirzepatide is a newer medication that’s even more powerful than semaglutide.

• Brand names: Mounjaro (diabetes), Zepbound (weight loss)
• How it works: Mimics two hormones—GLP-1 and GIP—to reduce appetite and improve insulin use
• How it’s taken: Weekly injection
• Results: Up to 20–22% total body weight loss in studies
• Side effects: Similar to semaglutide, with higher rates of nausea in some users
• FDA-approved for: Type 2 diabetes and chronic weight management

3. Liraglutide (Saxenda)

An older cousin of semaglutide, Saxenda is a daily weight loss injection.

• How it works: Also mimics GLP-1 to reduce hunger and food intake
• How it’s taken: Daily injection
• Results: Around 8–12% weight loss over several months
• Best for: People who prefer a daily routine and need moderate support
• Common side effects: Stomach upset, fatigue, dizziness

4. Lipotropic Injections (Lipo-C, MIC shots)

These are fat-burning nutrient injections that aren’t FDA-approved medications but are popular in wellness clinics.

• What they contain: B vitamins, methionine, inositol, choline, carnitine
• How they work: Support fat metabolism, liver detox, and energy levels
• How it’s taken: 1–2 times per week in a clinic
• Results: Modest fat loss when combined with diet and exercise
• Cost: Often $25–$75 per shot, depending on location

5. B12 Injections

Though not a fat-burner itself, vitamin B12 is often used alongside other weight loss treatments.

• How it helps: Supports energy levels and metabolism
• Best for: People with fatigue or B12 deficiency
• Frequency: Weekly to biweekly in many clinics

Are weight loss injections safe?

Yes—when prescribed and monitored by a licensed provider, weight loss injections are generally safe. However, they can have side effects like:

• Nausea or stomach upset
• Headaches or dizziness
• Risk of low blood sugar (especially if diabetic)
• Constipation or diarrhea

People with a history of pancreatitis, gallbladder issues, or certain thyroid conditions should avoid GLP-1 based medications.

When to visit urgent care

Urgent care may be able to help if:

• You’re starting injections and want a baseline health check
• You’re experiencing side effects from weight loss meds
• You need a referral to a medical weight loss provider
• You want to rule out underlying conditions that may affect weight

Final thought

Weight loss injections like semaglutide, tirzepatide, and liraglutide have changed the game for people struggling with obesity or metabolic conditions. When used responsibly with professional oversight, they can offer powerful support on your health journey.

If symptoms get worse or don’t improve, visit your local urgent care provider for professional evaluation.
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