Top 3 Weight Loss Injections in Malaysia (2025) – Mounjaro, Wegovy, Ozempic

September 18, 2025

The injectable anti-obesity and overweight drugs, especially drugs that act on GLP 1 and dual agonist pathways, are increasingly gaining popularity in the Malaysian weight control market in 2025. The most prominent ones include Mounjaro (tirzepatide), Wegovy (semaglutide high dose), and Ozempic (semaglutide). The three are compared below with advice particularly to those who are in or looking into treatment in Singapore.

1. Mounjaro (Tirzepatide) – What is it and how it works

Mounjaro is a dual agonist of GIP (glucose-dependent insulinotropic polypeptide) and GLP 1 (glucagon like peptide 1) drug. This provides it with a greater action on appetite suppression, weight loss, and metabolic enhancement than GLP 1 alone. Clinical trials indicate a loss of about 20% or more weight.

Singaporean Regulatory / Availability status

DKSH Singapore has been given approval on Mounjaro 2025 (tirzepatide) KwikPen. It is a prescription only drug.

It is approved in Singapore in adults with type 2 diabetes mellitus, and recommended as adjunct to a low energy diet and increased physical activity in weight management in selected categories of BMI (in case of obesity, or overweight with weight related comorbidity) according to the terms of approval.

Comparison and effectiveness

• Mounjaro has a higher likelihood to bring about relative weight reduction compared to Wegovy. E.g. in SURMOUNT 5 trial 25.2 percent of Mounjaro participants versus 13.7 percent of Wegovy participants lost their weight over an average of 72 weeks.
• Mounjaro, in comparison to Ozempic (weight reduction using lower dose semaglutide), in most cases demonstrates a better outcome in weight reduction and metabolic indices.

2. Wegovy (Semaglutide High dose) What it is

Wegovy is a semaglutide-specifically-approved-formulation to use in managing weight / obesity. It works through GLP 1 receptor agonism to lower appetite, retard gastric emptying, assist in calorie regulation.

Performance

Some of the promotions of Wegovy in Malaysia include weight loss, to up to 18% of body weight within a period of 6 months. Wegovy Malaysia

• The higher doses of Wegovy work better than the normal doses of semaglutide (as in Ozempic) at producing weight loss.

Availability in Singapore

Currently Singapore Wegovy is a weight management drug approved by HSA as at July 2025. Advantage Medical Group

3. Ozempic (Semaglutide, lower / diabetes doses) What it is

Ozempic was initially indicated in type 2 diabetes, but is also off-label in most locations in weight loss since at some dosages semaglutide acts by suppressing appetite and promoting weight loss.

Effectiveness

• Ozempic generally results in a less impressive loss of weight than Wegovy or Mounjaro in weight-loss trials – usually around 10 15% with dose and adherence. Advantage Medical Group+2mounjaro.com.my+2.
• GLP 1 agents: Side effects Nausea, gastrointestinal upset, etc Stimulus: These occurrences are common in the initial stages of treatment.

Use in Malaysia & Singapore

Ozempic in Malaysia is widely used, with prescriptions, to provide the dual effect of controlling blood sugar (to treat diabetes) and its weight loss capabilities. Malay Mail+1

In Singapore, Ozempic is commonly prescribed to diabetes and under supervision, some doctors prescribe it off label to weight loss. The regulatory position justifies the use of it under such conditions. Advantage Medical Group+1

Safety, Hazards and Purchasing

Since these are prescription drugs with systemic actions, some critical safety and regulatory issues must be addressed.

Regulation & prescriptions

All the three medications are prescriptive. In Singapore, the fact is, Mounjaro injection Singapore, Tirzepatide to lose weight Singapore etc. can be prescribed legally only through licensed medical clinics after a doctor examination.

• Prescription check online sellers should not be trusted. There is a high threat of fake or low quality product.

Buying online – what to watch out for

• If you search “Buy Mounjaro online Singapore”, there will be sites claiming to ship without prescription or requiring no doctor’s oversight. These are usually risky. Health Centre+2Healthline+2
• Always ensure any purchase is backed by a valid prescription, from licensed medical providers or pharmacies. Check regulatory approval, authenticity, storage conditions (cold chain for injections), and follow‑up / monitoring.

Side effects and eligibility

• Common side effects: nausea, vomiting, diarrhea, sometimes more serious issues like pancreatitis, gallbladder problems; thus, medical screening is necessary. mounjaro.com.my+1
• Eligibility criteria: BMI thresholds, presence of comorbidities, whether type 2 diabetes is present, evaluation by a physician. In Singapore, for weight management indication of Mounjaro, one must satisfy BMI criteria and comorbidities according to the approved label.

Summary: What’s Best for You?

• If maximum weight loss is the goal, Mounjaro (tirzepatide) appears to offer the greatest percentage loss in trials (especially in obese persons or overweight with comorbidity).
• If you are in Singapore, as of mid‑2025, Mounjaro is approved for both diabetes and obesity management (with a medical prescription). So the terms “Mounjaro weight loss Singapore”, “Mounjaro injection Singapore”, “Tirzepatide for weight loss Singapore” are technically valid—but only in the sense of medically supervised, regulated use.
• Wegovy is also a strong option if you prefer a semaglutide‑based drug with good weight loss efficacy; side effect profile and cost may differ.
• Ozempic is more accessible (especially for diabetes) and is effective, though it may deliver somewhat lower weight loss compared to higher dose semaglutide (Wegovy) or dual‑agonist tirzepatide (Mounjaro).

If you’re considering Mounjaro or other weight loss treatments, it’s important to seek professional advice to ensure safe and effective results. For expert in-clinic consultations, visit Nexus Clinic. Alternatively, you can access licensed medical advice and conveniently purchase prescribed medications online through DoctorOnCall and their Official Pharmacy.