Top 5 Prescription Weight-Loss Injections in India

Prescription weight‑loss injections are medical treatments used for adults with chronic obesity or overweight. They are recommended for people with a Body Mass Index (BMI) of 30 kg/m² or higher, or for those with a BMI of 27 kg/m² or higher who also have health problems such as type 2 diabetes, heart disease, or high blood pressure.

Because obesity is a long‑term metabolic condition, these medicines are intended for ongoing use under a doctor’s supervision. If treatment is stopped, appetite usually returns to baseline, and weight regain is common. These injections are not safe during pregnancy and should always be combined with a reduced‑calorie eating plan and regular physical activity to support lasting health improvements.

If you are having a difficult time losing weight through a healthy diet and physical activity alone, your doctor may talk to you about using a prescription injection. These medicines are not cosmetic treatments or quick fixes. Instead, they are prescribed to help manage long-term health risks for adults who have obesity (defined as a Body Mass Index (BMI) of 30 or higher) or adults with a BMI of 27 or higher who also have weight-related health conditions like high blood pressure, heart disease, or type 2 diabetes.

Because obesity is a chronic medical condition, these medicines are intended for long-term use. Clinical data show that if you stop taking the medication, your appetite will likely return to its baseline, and you may regain the weight you lost. For this reason, these treatments are always meant to be used alongside a lower-calorie eating plan and a regular exercise routine.

Most of the primary weight-loss injections belong to a class of medicines called incretin mimetics. They work by acting like the natural hormones your intestines release after you eat a meal.

These medicines help you lose weight by affecting your body in a few specific ways:

They signal fullness in your brain. The medication travels through your bloodstream to target the specific areas of your brain (including the hypothalamus) that regulate appetite. By mimicking your body's natural satiety hormones, the medicine signals to your brain that you are full, which reduces your overall interest in food and helps curb intense food cravings.

They slow down your digestion. These injections delay gastric emptying, which means they slow down how quickly your stomach empties its contents into your intestines. Because food remains in your stomach for a longer period, you feel physically satisfied sooner and experience fullness for a longer duration after eating smaller portions.

They stabilize your blood sugar. When food is present, these medicines help your pancreas release the appropriate amount of insulin while decreasing the release of glucagon (a hormone that raises blood sugar). Keeping your blood sugar levels stable prevents sudden spikes and crashes, which helps manage sudden, intense hunger pangs between meals.

Weight-loss injections are prescription medicines that may be used as part of a weight-management plan for eligible individuals. Below is a list of five prescription weight-loss injections available in India, along with a brief overview of each.

1. Wegovy (Semaglutide)
2. Mounjaro (Tirzepatide)
3. Alterme (Semaglutide)
4. Ozempic (Semaglutide)
5. Saxenda (Liraglutide)

1. Wegovy (Semaglutide)

Wegovy is prescribed specifically for long-term weight management and to help lower cardiovascular risks in adults with obesity. It uses the active ingredient semaglutide, which your doctor will have you start at a very low dose before slowly increasing it over several months to prevent severe stomach upset.

The most common side effects involve the digestive system, including nausea, vomiting, diarrhea, stomach pain, and constipation.

2. Mounjaro (Tirzepatide)

Mounjaro mimics two different gut hormones at the same time: GLP-1 and GIP. By targeting both pathways, it is highly effective at reducing appetite. While it is officially approved to help manage blood sugar in adults with type 2 diabetes, doctors frequently prescribe it to help patients manage severe weight risks.

Common side effects include a decreased appetite, nausea, vomiting, and diarrhea.

This medicine can temporarily lower how well oral birth control pills work. If you take birth control pills, you will need to use a backup, non-oral method of contraception for four weeks when you first start Mounjaro and each time your doctor raises your dose.

3. Alterme (Semaglutide)

Alterme is an affordable, domestic brand of semaglutide manufactured in India by Zydus Healthcare. It has been approved by Indian medical regulators (the DCGI) to treat both type 2 diabetes and chronic obesity. It contains the exact same active drug molecule as global brands but is designed to be more accessible for patients in India.

Instead of a disposable pen, Alterme is used via a reusable pen device that you load with a replaceable medicine cartridge.

Like other semaglutide injections, it may cause nausea, indigestion, gas, and changes in bowel habits.

4. Ozempic (Semaglutide)

Ozempic uses the same active medicine (semaglutide) found in Wegovy and Alterme, but it is officially approved only for treating type 2 diabetes. Because it naturally slows digestion and reduces hunger, doctors often prescribe it off-label to help patients lose weight. It uses a lower maximum weekly dose than brands built strictly for weight loss.

The most common side effects include nausea, stomach cramping, diarrhea, and reduced appetite.

5. Saxenda (Liraglutide)

Saxenda belongs to the same family of gut-hormone mimetics, but the liraglutide molecule clears out of your bloodstream much faster than semaglutide. Because of this, it cannot be taken weekly; you must give yourself this injection once every day at around the same time.

Daily nausea is very common when first starting, along with constipation, headaches, and irritation where the needle enters the skin.

Using prescription weight-loss injections safely requires strict adherence to your clinical treatment plan. Because these medications actively alter your metabolic and digestive physiology, proper administration, dosing management, and clinical communication are essential to protect your health.

• Inject the medicine under your skin. You must inject these medications subcutaneously, which means into the fat layer just under your skin. The approved areas for injection are your abdomen, the front of your thighs, or the back of your upper arms.
• Change your injection site each time. Do not use the exact same spot for every injection. Rotating your injection sites helps prevent the tissue under your skin from becoming hard, tender, or irritated.
• Store your medicines at the right temperature. Keep unopened injection pens and cartridges in your refrigerator between 2°C and 8°C. Do not freeze these medications, and do not use them if they have been frozen.
• Know what to do for a missed weekly semaglutide dose (Wegovy or Alterme). If you forget a shot, check the calendar. If your next regular day is more than 2 days (48 hours) away, take the missed shot right away. If your next dose is less than 2 days away, skip the missed dose and wait for your next regular day.
• Know what to do for a missed weekly tirzepatide dose (Mounjaro). If you miss an injection, take it as soon as you remember if your next scheduled dose is more than 4 days (96 hours) away. If fewer than 4 days remain, skip the missed dose entirely and resume your usual schedule on your next regular day.

• Never take an extra dose. Do not administer two injections within the same 24-hour period, and never take a double dose to make up for a missed one. Taking too much of the medication can cause severe stomach pain, nausea, and vomiting.

• Tell your surgical team about your medication. Because these medicines slow down how quickly your stomach empties food, they carry a hidden risk if you need surgery. If your stomach is not completely empty when you receive anesthesia or sedation, food or fluid can enter your lungs, causing life-threatening breathing complications.

• Pause your medicine safely before procedures. Always tell your surgeon, anesthesiologist, or dentist exactly what weight-loss injection you are taking. Your healthcare provider will give you precise instructions on how many days or weeks before a scheduled surgery you must safely stop taking your medication.

1. https://www.niddk.nih.gov/health-information/weight-management/prescription-medications-treat-overweight-obesity
2. https://www.niddk.nih.gov/health-information/professionals/diabetes-discoveries-practice/incorporate-weight-loss-medications-diabetes-care
3. https://my.clevelandclinic.org/health/drugs/23611-semaglutide-injection-weight-management
4. https://pmc.ncbi.nlm.nih.gov/articles/PMC12711348/
5. https://www.bhf.org.uk/informationsupport/heart-matters-magazine/medical/weight-loss-injections-explained
6. https://www.england.nhs.uk/ourwork/prevention/obesity/medicines-for-obesity/weight-management-injections/
7. https://pmc.ncbi.nlm.nih.gov/articles/PMC9272494/