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Medical professionals often prescribe semaglutide to patients who have type 2 diabetes. Along with a balanced diet and regular exercise, it has also shown to be an incredibly efficient weight loss aid for patients. As the active ingredient in well-known brand-name drugs such as Wegovy, Ozempic, and Rybelsus, semaglutide is currently on everybody's lips. But what exactly is semaglutide? Does it really work for weight loss? We'll find an answer for you in this article, and explain the main benefits of using semaglutide for weight loss. What Is Semaglutide? A number of diabetic and weight loss medications, including Wegovy, Ozempic, and Rybelsus, have semaglutide as their active ingredient. This substance is a synthetic form of the hormone glucagon-like peptide-1 (GLP-1), that occurs naturally. Developed by the company Novo Nordisk, semaglutide was first approved by the FDA in 2017 as an injection for the treatment of adult type 2 diabetes (as part of the approval procedure for Ozempic). In 2019, the Food and Drug Administration approved a novel semaglutide form known as Rybelsus. Rybelsus was the first oral GLP-1 receptor agonist for the treatment of type 2 diabetes in the United States.

Amid the rapid rise in semaglutide usage, a study has suggested a potential risk of a rare eye condition associated with the weight loss drug. Semaglutide, a glucagon-like peptide 1 receptor agonist (GLP-1 RA), is available under the brand name Ozempic (by Novo Nordisk) in a lower-dose form for managing type 2 diabetes mellitus (T2DM), and as Wegovy (also by Novo Nordisk) in a higher-dose form for weight management in patients with high body mass indexes. Anecdotal evidence has indicated that semaglutide might be linked to nonarteritic anterior ischemic optic neuropathy (NAION). To investigate this potential connection, researchers in the United States analysed data over a six-year period from nearly 17,000 neuro-ophthalmology patients at Massachusetts Eye and Ear Hospital in Boston, Massachusetts, all of whom had no prior history of NAION.

Novo Nordisk, the Danish drug manufacturer, has launched Wegovy, a weight-loss drug, in the UK market. This semaglutide injection will be available through specialist NHS weight management services for those who meet the National Institute for Care and Excellence (NICE) criteria or privately through registered healthcare professionals. Novo Nordisk allocated a portion of the available supply of Wegovy for NHS services, while confirming the existing shortage of semaglutide and projecting continued constraints in the foreseeable future. The drug can be obtained through the NHS and is additionally accessible for private purchase at pharmacies in the UK. The pricing for a one-month supply varies, ranging from £73.25 to £175.80, depending on the dosage. "We are committed to expanding treatment options for individuals with obesity and share the Government's goal of improving access to obesity care in areas of high unmet medical need," the company said in a statement. "We are closely monitoring Wegovy demand and collaborating with regulators and providers to ensure access to and continuity of treatment for people living with obesity."

The Medicines and Healthcare products Regulatory Agency (MHRA) has approved a new indication of semaglutide (Wegovy), authorising its use to reduce the risk of serious heart problems and strokes in adults who are obese or overweight. Semaglutide, a GLP-1 receptor agonist, was previously approved for use in the treatment of obesity and weight management, to be used alongside diet, physical activity and behavioural support. The latest approval establishes it as the first weight loss drug to be prescribed to prevent cardiovascular events, such as cardiovascular death, non-fatal heart attack and non-fatal stroke, in people with established cardiovascular disease and a Body Mass Index (BMI) higher or equal to 27 kg/m2. Novo Nordisk, the manufacturer of Wegovy, received this authorisation on 23 July following compelling evidence from a recent post-approval clinical study involving over 17,600 participants. The study demonstrated that Wegovy, administered at a dose of 2.4 mg once weekly via subcutaneous injection for up to five years, significantly lowers the incidence of major adverse cardiovascular events (MACE) by 20 per cent compared to a placebo.

The World Health Organization (WHO) issued a warning on Thursday regarding falsified semaglutide medications used for treating type 2 diabetes and obesity in select countries. This WHO Medical Product Alert addresses three falsified batches of the specific brand Ozempic that were detected in Brazil (October 2023), the United Kingdom and Northern Ireland (October 2023), and the United States (December 2023). These falsified semaglutide products were distributed through the regulated supply chain. Novo Nordisk, the genuine manufacturer of Ozempic, confirmed that the three products mentioned in the alert are falsified and were not produced by the company. Healthcare professionals, regulatory authorities and the public are advised to remain vigilant regarding these falsified batches of medicines. Dr Yukiko Nakatani, WHO Assistant Director-General for Access to Medicines and Health Products, urged stakeholders to stop any usage of suspicious medicines and report them to relevant authorities.

The Medicines and Healthcare Products Regulatory Agency (MHRA) confirmed that Ozempic has been found at two UK wholesalers on 18 October. The pre-filled falsely labelled pens have been purchased from legitimate suppliers in Austria and Germany. However, there has been no evidence that fake Ozempic has been supplied to UK patients. Dr Alison Cave, MHRA Chief Safety Officer spoke about closely with regulatory partners to ensure patients' safety. He said: "Buying semaglutide from illegally trading online suppliers significantly increases the risk of getting a product either falsified or not licensed for use in the UK. "Products purchased in this way will not meet our strict quality and safety standards, and taking such medicines may put your health at risk," he added.

National Institute of Health and Care Excellence (NICE) has not recommended 'Tirzepatide', also known as Mounjaro, developed by Eli Lilly, in its draft guidance issued on Tuesday (27 June) for treating type 2 diabetes in adults alongside diet and exercise. The independent NICE committee recognised the importance of new treatment options given that fewer than two-thirds of the adults with type 2 diabetes have adequate glucose control when using current treatment options. Evidence submitted to the committee from clinical trials showed the use of tirzepatide at any dose resulted in better glucose control and lower weight compared with semaglutide or insulin therapy. The weight reduction was more pronounced with higher doses of tirzepatide, while the effect on glucose levels seemed less dose-dependent. Similar effects were observed against all GLP-1 receptor agonists in company's network meta-analysis, but this was uncertain. The committee have asked the company to provide more data to address the uncertainties in the clinical evidence, when compared to all relevant alternative treatments.

It has been reported that several Austrians have been taken to the hospital after injecting fake Ozempic, as confirmed by health regulator. Austria's Federal Office for Safety in Health Care (BASG) confirmed that the patients have suffered hypoglycaemia and seizures. It is believed that the injections contained insulin instead of the weight loss drug, semaglutide. The health regulator has urged doctors and patients to verify their medication stocks.

The Department of Health and Social Care (DHSC) has issued an alert to update healthcare professionals on the shortage of glucagon-like peptide-1 receptor agonists (GLP-1 RAs), which are used to treat type 2 diabetes. It has informed that the supply of the drugs continues to be limited, and is not expected to return to normal until at least the end of 2024. An increase in demand for these products for licensed and off-label indications is cited as the cause of the supply issues. "Rybelsus® (semaglutide) tablets are now available in sufficient quantities to support initiation of GLP1 RA treatment in people with type 2 diabetes (T2DM) in whom new initiation of GLP-1 RA therapy would be clinically appropriate," the DHSC's National Patient Safety Alert reads.

British pharmacies and slimming clinics are reducing prices for weight-loss drugs Wegovy and Mounjaro in a competitive bid to win patients. Both Novo Nordisk's Wegovy (semaglutide) and Eli Lilly's Mounjaro (Tirzepatide) injection drugs are cleared for weight loss in combination with a reduced-calorie diet and increased physical activity. Wegovy was launched in the UK market in September, with Mounjaro following in February. Initially designed for treating type 2 diabetes, the drugs have been found to also induce weight loss by suppressing appetite and decelerating digestion. As reported by Reuters, Simple Online Pharmacy has further reduced the price of starter doses of Mounjaro to £149 for a one-month supply. In February, the price was cut to £159 ($198) from £179. Additionally, the pharmacy on Monday discounted the higher Mounjaro strengths that patients take later.