Eli Lilly’s weight-loss and diabetes injection, Mounjaro, has overtaken GSK’s antibiotic Augmentin (GSK.L) to become India’s highest-selling drug by value in October, as demand for weight-loss treatments continues to surge in the world’s most populated country. According to new data from research firm Pharmarack, the U.S.-based drugmaker’s popular injectable earned ₹1 billion ($11.38 million) in sales last month, compared to Augmentin’s ₹800 million.While Augmentin still led in overall units sold—5.8 million doses versus 85,000 of Mounjaro—the latter’s premium pricing pushed it ahead in total value, as per Reuters. Analysts say India is rapidly emerging as a major market for obesity treatments, with the global weight-loss drug sector expected to cross $150 billion annually by the end of this decade.Eli Lilly’s Mounjaro Becomes India’s Top-Selling Medicine in OctoberLaunched in India in March 2025, Mounjaro which helps regulate blood sugar levels and reduces appetite—has seen its sales double within months, surpassing its rival Wegovy by Novo Nordisk, which entered the Indian market in June. Data from Pharmarack shows that Mounjaro has so far generated ₹3.33 billion in total revenue.“Mounjaro’s consumption in India by volume was nearly ten times higher than Wegovy in October,” said Sheetal Sapale, Vice President (Commercial) at Pharmarack. Eli Lilly sold around 262,000 doses of Mounjaro last month, compared to 26,000 doses of Wegovy. Both drugs belong to the GLP-1 receptor agonist class, designed to treat obesity and type 2 diabetes.How Does Mounjaro Work?Mounjaro is a once-weekly injectable medication developed primarily for managing type 2 diabetes. Its key ingredient, tirzepatide, is the first of its kind to act on two gut hormones—GLP-1 (glucagon-like peptide-1) and GIP (glucose-dependent insulinotropic polypeptide). This dual mechanism makes Mounjaro more advanced than older drugs such as Ozempic (semaglutide) or Victoza (liraglutide), which target only GLP-1, which is thus driving a surge in its sale in india.Although it was originally approved for diabetes management, Mounjaro has attracted global attention for its strong weight-loss effects. Ongoing studies are evaluating its use for non-diabetic individuals struggling with obesity. The drug mimics the action of GIP and GLP-1, which are hormones released naturally after meals to regulate insulin release, lower blood sugar, and suppress appetite.Mounjaro for Type 2 DiabetesFor people living with type 2 diabetes, keeping blood sugar in check often requires a combination of medicines, diet adjustments, and regular monitoring. Mounjaro offers a more integrated solution by targeting multiple factors that influence glucose levels. Findings from clinical trials, including the SURPASS-1 to SURPASS-5 studies, show that Mounjaro delivers better outcomes than many existing diabetes treatments, particularly in lowering HbA1c levels—a key marker of long-term glucose control.Patients using Mounjaro have shown: Lower fasting and post-meal blood sugar levels Reductions in HbA1c by up to 2.5%Improved insulin sensitivityMounjaro and Weight LossBeyond its use for diabetes, Mounjaro has gained global popularity for its significant role in weight reduction. Clinical studies reveal that people taking the drug often lose between 15% and 20% of their body weight over several months of consistent use. This level of weight loss surpasses that seen with many earlier treatments and even some surgical interventions, making Mounjaro one of the most effective options currently available for managing obesity.Disclaimer: This article is intended for general information and should not replace professional medical guidance. Always consult your doctor for advice or concerns regarding any health condition.