Both from Eli Lilly and weekly, but Mounjaro is tirzepatide (dual action) and Trulicity is dulaglutide (GLP-1 only). Mounjaro is markedly stronger for weight.
What matters here
For weight loss, Mounjaro clearly outperforms Trulicity. Trulicity is a solid, gentler diabetes option with modest weight effect. If weight is the priority, Mounjaro is the stronger tool.
When to check with your doctor
This is general information, not a prescription. Your dose, your other medicines and your medical history all change the picture — message your ZIVOLABS doctor before making any change to how you take your medication.
What the medication is doing inside your body
Three things happen at once on {b}. First, your stomach empties more slowly, so a small meal keeps you full for hours. Second, appetite signalling in the brain is dialled down, so you think about food less. Third, blood-sugar control improves because insulin is released more efficiently after meals. Together these put you in a gentle, sustainable calorie deficit — the reason people lose roughly 10–20% of their body weight over a year when the medicine is paired with enough protein and some strength training.
What to expect, week by week
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Weeks 1–2: You start on the lowest dose. Appetite begins to dip; some people feel mild nausea or a headache as the body adapts. Weight barely moves yet — that's normal.
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Weeks 3–4: Food noise drops noticeably. The first dose step-up usually happens around week 4, which can briefly bring side effects back before they settle.
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Months 2–3: This is where steady weight loss shows up — often 0.5–1 kg a week. Trial data show about 5–7% of starting weight gone by 12 weeks.
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Months 4–6: The trajectory is clear: roughly 10–12% loss on semaglutide and 14–16% on tirzepatide, alongside diet and activity.
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Beyond 6 months: Loss continues more slowly toward a new set point, after which you shift to a maintenance dose to hold the result.
Side effects and how to manage them
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Nausea is the most common, mostly in week one and after each dose increase. Smaller portions, less oily food, ginger or jeera water, and staying upright after eating all help.
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Constipation responds to three litres of water a day, daily isabgol (psyllium husk), fruit and sprouts, and a short walk after meals.
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Fatigue usually means you're eating too little — check your protein, iron and B12, and don't cut calories too hard.
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Reflux eases with lighter, earlier dinners and not lying down after eating; a short course of antacids or a PPI helps if needed.
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Most side effects are temporary and fade as your body adjusts. Anything severe or persistent — especially intense upper-abdominal pain — should go straight to your doctor.
Is it right for you?
The honest answer needs a doctor, but the broad rules are simple. You're likely a candidate if your BMI is 30+, or 27+ with a condition like diabetes, PCOS or fatty liver, and lifestyle changes alone haven't been enough. You're not a candidate if you're pregnant, breastfeeding, or planning pregnancy soon, or if you have a personal/family history of medullary thyroid cancer or MEN-2. Pancreatitis history and eating-disorder history need careful, individual judgement. A good prescriber assesses all of this before writing anything.
What it costs in India
As a rough guide, expect ₹14,000–₹28,000 a month, varying by dose, brand and pharmacy, with 12% GST already built into the MRP. Costs are usually highest during the dose-escalation months and lower once you settle onto a maintenance dose. Health insurance in India typically covers GLP-1 only when it's prescribed for diabetes, not for weight loss alone, though many corporate packages include a medical-reimbursement allowance you can use. The cheapest 'option' — an unverified pen from an unlicensed seller — is the one that actually costs the most if it's fake.
How to avoid fake or unsafe medication
If a deal looks too good to be true, it is. Real GLP-1 medicines are expensive because they're complex biologics with a cold chain; suspiciously cheap offers across India are almost always counterfeit. Insist on a licensed pharmacy, a real prescription, an intact hologram and batch number, and proper refrigerated delivery. Never buy 'research peptides' or compounded versions — they aren't approved in India and aren't quality-controlled. Doctor supervision matters here too: the right dose, titrated slowly, is what keeps the medicine both safe and effective.
Frequently asked questions
How is Mounjaro taken?
Mounjaro is a once-weekly injection. You inject it under the skin of the abdomen, thigh or upper arm, rotating sites each week.
How much does Mounjaro cost in India?
Typically ₹14,000–₹28,000 a month, depending on dose and pharmacy — and far cheaper than the cost of a counterfeit. Always buy from a licensed pharmacy.
How long until I see results?
Appetite usually drops within the first week or two, with steady weight loss building over the first one to three months as the dose increases. Judge progress monthly, not daily.
Will I regain the weight if I stop?
Often, yes — appetite returns once the medicine clears, so a planned step-down to a maintenance dose plus the habits you've built is far better than stopping abruptly.
How ZIVOLABS supports you through it
ZIVOLABS is built as a doctor-supervised GLP-1 program for India, not just a pharmacy. You start with a proper medical assessment online; a verified doctor reviews your history, confirms whether treatment is appropriate, and writes a genuine prescription if so. Your medication is dispensed by a CDSCO-licensed pharmacy and delivered cold-chain to your door, and you can message your care team whenever side effects or questions come up. Dose changes, plateaus and the eventual step-down to maintenance are all guided — because the medicine works best with a plan and a clinician around it.
Key takeaways
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Mounjaro (tirzepatide) reduces appetite and slows digestion, so you eat less without constant hunger.
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Protein (1.2–1.6 g/kg/day) plus two to three strength sessions a week protect muscle while you lose fat.
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Side effects are mostly early and manageable; start low, go slow, and report anything severe.
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Buy only genuine, doctor-prescribed medication from a licensed pharmacy — counterfeits are a real risk in India.
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It works best as a supervised plan, with a maintenance dose to hold the result rather than stopping abruptly.
Talk to a doctor before you start
Everyone's history is different. A ZIVOLABS doctor reviews your medical history, current medicines and goals before prescribing — and stays with you through every dose change. Take the 2-minute eligibility check to see if a GLP-1 plan is right for you.
