Mounjaro 15 mg in India: price, when it's used and what to expect

What Mounjaro 15 mg is for

15 mg is one of the three Mounjaro doses used as a long-term treatment dose (5 mg, 10 mg and 15 mg). Your doctor moves you up in 2.5 mg steps, at least four weeks apart, until you reach the dose that works for you with side effects you can manage. Some people stay at 15 mg for months; others move up.

Mounjaro 15 mg price in India

One Mounjaro 15 mg KwikPen has four weekly doses and an MRP of ₹25,781, so a month of treatment at this strength costs about ₹25,781, or around ₹6,445 a week. It costs the same as the 12.5 mg pen.

* Prices are manufacturers' maximum retail prices (MRP) in India, checked October 2026, and are shown as a guide only. Prices change often and may differ when you buy. Lean Life does not sell medicines online: any medicine is prescribed only after a consultation with a Lean Life doctor, and dispensed by a licensed pharmacy.

Work out your first-year cost with our calculator, or see every strength and medicine side by side.

Weight loss at 15 mg

In the main trial of tirzepatide for weight loss (SURMOUNT-1), adults who stayed on 15 mg for 72 weeks, alongside a reduced-calorie diet and more activity, lost an average of 20.9% of their body weight. Results vary from person to person, and many people reach their goal on a lower dose than the highest.

Side effects at this stage

Stomach side effects are most common in the weeks after a dose increase. In SURMOUNT-1, about 31% of people on 15 mg had nausea at some point, compared with about 10% on placebo. Most cases were mild to moderate and eased with time.

• Eat smaller meals and stop when you feel full.
• Choose plain, protein-rich food and drink plenty of fluids.
• Tell your doctor if vomiting or diarrhoea doesn't settle, or you can't keep fluids down.
• Get urgent help for severe stomach pain that spreads to your back, which can be a sign of pancreatitis.

Read the full side effects guide.

Missed a dose?

If it's been 4 days (96 hours) or less since you missed it, take it as soon as you remember. If it's been more than 4 days, skip it and take the next one on your usual day. Never take two doses within 3 days of each other. Our missed-dose checker works it out for you.

Storing your pen

Keep unopened pens in the fridge (2°C to 8°C), never in the freezer. Once you've started a pen, it can be kept at up to 30°C for up to 30 days, then thrown away even if a dose is left. In an Indian summer, keep it in the fridge or a cool bag rather than in a car or bag in the sun.

Getting Mounjaro 15 mg safely

• Buy only with a prescription, from a licensed pharmacy. Never from social media sellers, gyms or salons.
• Check the pack is sealed, the batch number and expiry date are printed clearly, and the price is not far below MRP.
• Pens should arrive cold, in insulated packaging.
• If anything looks wrong, don't inject it. Show it to your pharmacist or doctor.