Mounjaro vs Ozempic: Which Weight Loss Injection Works Better in India?

If you have been researching weight loss injections in India, you have almost certainly come across two names – Mounjaro and Ozempic. Both are weekly injections. Both help with weight loss. And both are now available in India under medical prescription.

But they are not the same. They work differently, produce different results, and cost differently in the Indian market. This guide gives you a clear, honest comparison of Mounjaro vs Ozempic so you can walk into a doctor’s consultation already informed — and ask the right questions.

“In India, over 100 million people are currently living with diabetes, and an additional 135 million are prediabetic. Obesity is closely linked to this crisis, making effective medical weight management more important than ever.” — Indian Council of Medical Research (ICMR), 2023

What Is Mounjaro?

Mounjaro is the brand name for tirzepatide, a prescription injection developed by Eli Lilly. It was approved by India’s Central Drugs Standard Control Organisation (CDSCO) and launched in India in March 2025.

Mounjaro works on two hormones — GLP-1 (glucagon-like peptide-1) and GIP (glucose-dependent insulinotropic polypeptide). This is called a dual-receptor mechanism, and it is what makes Mounjaro stand apart from other injections in this category.

It is injected once a week, under the skin, and must be taken under doctor’s supervision.

What Is Ozempic?

Ozempic is the brand name for semaglutide, a prescription injection developed by Novo Nordisk. It launched in India in December 2025.

Ozempic works on one hormone — GLP-1 only. It slows digestion, reduces appetite, and helps control blood sugar. It is also injected once a week.

Semaglutide (the active ingredient in Ozempic) is also sold under the brand name Wegovy, which is specifically approved for weight management.

How Do They Work? A Simple Explanation

Both injections mimic hormones that your gut naturally releases after eating. These hormones signal your brain that you are full, slow down digestion, and help control blood sugar.

Here is where they differ:

	Mounjaro (Tirzepatide)	Ozempic (Semaglutide)
Hormones targeted	GLP-1 + GIP (dual action)	GLP-1 only
Appetite suppression	Stronger	Moderate
Injection frequency	Once a week	Once a week
Available in India since	March 2025	December 2025
Approved by CDSCO	Yes	Yes
Prescription required	Yes	Yes

The dual-action mechanism of Mounjaro is the key reason it tends to produce stronger results. GIP works alongside GLP-1 to further reduce appetite and improve how the body processes fat.

Mounjaro vs Ozempic: Weight Loss Results

This is the question most people are asking. Let us look at what clinical studies have found.

Mounjaro Results

In the landmark SURMOUNT-1 trial published in the New England Journal of Medicine, patients on the highest dose of Mounjaro (15 mg) lost an average of 20.9% of their body weight over 72 weeks. For someone weighing 90 kg, that is approximately 18–19 kg of weight lost.

Around 50% of patients on higher doses lost 20% or more of their body weight.

Ozempic Results

In the STEP-1 trial, patients on semaglutide lost an average of 14.9% of their body weight over 68 weeks. This is still a significant and clinically meaningful result.

Head-to-Head Comparison

A real-world study published in JAMA Internal Medicine compared over 18,000 patients on both medications. The findings were clear:

Outcome	Mounjaro	Ozempic
Patients losing ≥ 5% weight	81.8%	66.5%
Patients losing ≥ 10% weight	62.1%	37.1%
Patients losing ≥ 15% weight	42.3%	18.1%
Average total weight loss (12 months)	15.3%	8.3%

Source: JAMA Internal Medicine, real-world comparative study

Bottom line: Mounjaro consistently produces more weight loss than Ozempic across all categories. However, Ozempic still delivers meaningful results and may suit patients who need a more affordable option.

Mounjaro vs Ozempic: Cost in India (2026)

Cost is a major factor for Indian patients, as most health insurance plans in India currently cover neither medication.

Medication	Monthly Cost (India)
Mounjaro 2.5 mg (starting dose)	₹20,000 per month
Mounjaro 5 mg	₹24,000 per month
Mounjaro 15 mg (highest dose)	₹35,000 per month
Ozempic 0.5 mg	₹8,800 per month
Ozempic 1 mg	₹11,175 per month

Prices are approximate and subject to change. Consultation fees are separate.

Mounjaro is priced higher, but its stronger results mean many patients achieve their goals in fewer months — which can balance out the total cost of treatment.

Side Effects: What to Expect

Both injections share a similar side effect profile because they both work on the GLP-1 pathway. Most side effects are mild and temporary, and they usually settle after the first few weeks as your body adjusts.

Common Side Effects of Both

• Nausea (most common, especially in the first 4 weeks)
• Mild diarrhoea or constipation
• Reduced appetite
• Mild stomach discomfort

Differences in Side Effects

• Mounjaro tends to cause slightly more diarrhoea in some patients
• Ozempic tends to cause more nausea in the early weeks

Both carry a small risk of more serious effects, such as pancreatitis, which is why doctor supervision is non-negotiable

“These medications should only be prescribed and monitored by qualified physicians. Self-medicating with weight loss injections without proper screening is unsafe and can lead to serious health complications.” — Central Drugs Standard Control Organisation (CDSCO), Government of India

Who Should Not Take These Injections

Neither medication is suitable if you have:

• A personal or family history of medullary thyroid cancer
• Multiple endocrine neoplasia type 2 (MEN2)
• Severe gastrointestinal conditions
• Are you pregnant or breastfeeding

Always disclose your full medical history to your doctor before starting either treatment.

Mounjaro vs Ozempic: Which One Is Right for You?

There is no single correct answer. The right choice depends on your specific health situation. Here is a simple guide:

Consider Mounjaro if:

• You want maximum weight loss results
• You have both obesity and type 2 diabetes
• You are comfortable with a higher monthly cost
• You want faster visible results (noticeable from month 2 in many patients)

Consider Ozempic if:

• Budget is a key consideration
• You have cardiovascular disease (Ozempic has specific heart-protective approvals)
• You are starting with a lower dose and want to see how your body responds
• You prefer a medication with a longer track record globally

In both cases, you need:

• A valid prescription from a qualified doctor
• Regular monitoring and follow-up consultations
• A structured diet and lifestyle plan alongside the medication

Why Doctor Supervision Matters in India

Both Mounjaro and Ozempic are Schedule H prescription drugs in India. They cannot legally be purchased without a doctor’s prescription, and for good reason.

Proper supervision includes:

• Medical screening before starting — checking thyroid, liver, kidney, and heart health
• Dose titration — starting low and increasing gradually to reduce side effects
• Regular check-ins — monitoring weight loss, blood sugar, and overall health
• Diet guidance — medication works significantly better alongside a structured nutrition plan
• Post-treatment planning — addressing weight maintenance after completing the programme

At Vivo Body & Skin Clinic, our doctor-supervised Mounjaro programme includes an initial medical consultation, personalised dosing, and ongoing monitoring throughout your treatment journey. Book a free consultation here.

Conclusion

Both Mounjaro and Ozempic represent a genuine advancement in medical weight loss — and both are now accessible in India under doctor supervision.

If weight loss is your primary goal and budget allows, Mounjaro’s dual-action mechanism delivers stronger, faster results based on current clinical evidence. If affordability is a priority or you have specific cardiovascular concerns, Ozempic remains a highly effective option.

What both injections have in common is this: they work best under proper medical supervision, alongside a healthy diet and an active lifestyle. They are not shortcuts — they are medical tools that, when used correctly, can produce life-changing results.

If you are considering either treatment, the right first step is a thorough medical consultation. Ready to take that step? Book a free consultation at Vivo Body & Skin Clinic today.

Frequently Asked Questions

Disclaimer: This article is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional before starting any prescription medication.