The effects of Ozempic and other weight loss injections
In recent years, a class of drugs originally developed to treat diabetes has transformed into one of the most sought-after weight-loss treatments in the world. At the center of this phenomenon is Ozempic, a brand name for semaglutide, along with related medications such as Wegovy, Saxenda, and Mounjaro. Hailed by some as a miracle solution for obesity, these injections have also sparked urgent debate over safety, side effects, cost, and the cultural obsession with quick fixes.
The 60 Minutes Australia investigation highlighted both the life-changing benefits and the sometimes devastating consequences of these drugs, painting a complex picture of science, commerce, and human hope.
What Are Weight Loss Injections Like Ozempic?
Ozempic belongs to a class of medicines known as GLP-1 receptor agonists. By mimicking hormones that regulate appetite and insulin, they help patients feel full sooner, eat less, and maintain better control over blood sugar levels. Originally prescribed for type 2 diabetes, doctors soon noticed their powerful effect on weight reduction.
Wegovy, a higher-dose version of semaglutide, is now approved specifically for chronic weight management. Mounjaro (tirzepatide), which combines GLP-1 and GIP receptor activity, is another drug making headlines for its even more dramatic results. In clinical trials, patients lost 15% or more of their body weight when the injections were paired with lifestyle changes.
The Promise: A New Frontier in Obesity Treatment
The global obesity crisis has long frustrated doctors and patients alike. Traditional approaches—diet, exercise, and behavioral therapy—often fail to achieve lasting results. Surgery, though effective, is invasive and costly. For many, these new medications represent a revolutionary middle ground.
Beyond weight loss, research shows that semaglutide can reduce risks of cardiovascular disease, sleep apnea, and even fatty liver disease (MASH). The U.S. FDA recently expanded Wegovy’s approval to include treatment of metabolic liver disease, signaling a wider role for these drugs in addressing related conditions.
The Common Side Effects
Yet, with popularity has come a surge of reports about unpleasant, and sometimes dangerous, side effects.
- Gastrointestinal problems such as nausea, vomiting, diarrhea, constipation, and abdominal pain are the most frequently reported.
- Injection-site reactions are common but usually mild.
- Lean muscle loss can occur alongside fat reduction, raising concerns about frailty in older patients.
For many, these side effects are manageable. For others, they are severe enough to stop treatment altogether.
The Rare but Alarming Risks
Where the debate intensifies is in the growing evidence of rare but serious complications.
- Eye health: Regulators in Europe and Australia now warn that semaglutide has been linked to cases of non-arteritic anterior ischemic optic neuropathy (NAION), an eye stroke that can cause sudden blindness. Australia’s Therapeutic Goods Administration (TGA) has logged more than 40 cases of eye disorders, including at least two cases of complete vision loss.
- Life-threatening gastrointestinal issues: Tragically, there have been reported deaths in Australia of patients who experienced severe digestive complications after using Ozempic or Saxenda. These cases are rare but underscore the importance of close medical supervision.
- Heart and brain effects: Some patients describe changes in motivation, mood, or mental sharpness, potentially linked to shifts in dopamine and serotonin regulation.
These rare events have added urgency to calls for stricter prescribing guidelines and more public awareness.
The Unexpected Side Effects: Hair, Teeth, and Mood
The conversation around Ozempic has also been colored by unusual, sometimes unexpected reports:
- Hair loss (“Ozempic alopecia”): Large studies suggest semaglutide users face a higher risk of hair shedding compared to people on other weight-loss drugs.
- Dental health issues (“Ozempic teeth”): Dry mouth, vomiting, and changes in diet may lead to tooth decay and gum disease. Dentists report a noticeable uptick in cases linked to weight-loss injections.
- Emotional and motivational changes: Some patients on tirzepatide describe feeling a reduced drive to pursue goals, raising concerns about impacts beyond physical health.
While these experiences do not affect everyone, they illustrate how wide-ranging the effects of altering appetite hormones can be.
The Cost Factor and Accessibility Debate
Another dimension is cost. In Australia, a year of Ozempic treatment can cost nearly AUD 2,000 if not subsidized by the Pharmaceutical Benefits Scheme (PBS). The Royal Australian College of General Practitioners has argued for broader subsidies, noting the long-term health benefits could save the system money.
Without subsidies, however, many turn to unregulated sources, creating black markets that put vulnerable people—especially teenagers—at risk. Reports of secret “Ozempic diet clubs” in Australian schools highlight the dangers of unsupervised use.
Cultural Pressures and the Risk of Misuse
Ozempic has become more than a medicine—it is a cultural phenomenon. Celebrities openly or secretly using it have added to its mystique. Social media is filled with testimonials, before-and-after photos, and even humor about “skinny jabs.”
But the hype also fuels misuse. For young people, the pressure to look thin can override caution, while some adults pursue the injections without addressing underlying health needs or the lifestyle changes necessary for sustained wellbeing.
A Balancing Act: Hope and Caution
There is no doubt that weight-loss injections like Ozempic mark a breakthrough in medicine. For many patients, they represent not just cosmetic change, but a chance at longer, healthier lives.
At the same time, the risks—ranging from unpleasant nausea to rare cases of blindness or even death—are real. These drugs are not magic bullets. Doctors stress that they should be part of a comprehensive plan that includes nutrition, exercise, and psychological support, rather than a quick fix.
As regulators, doctors, and patients navigate this new landscape, one truth stands out: Ozempic offers extraordinary possibilities, but at a price that must be carefully weighed—physically, emotionally, and financially.
✅ Weight-loss injections like Ozempic are reshaping obesity treatment worldwide. They promise significant health benefits but carry a wide spectrum of risks, from gastrointestinal distress to rare but devastating complications. The challenge now is to harness their potential responsibly, ensuring that hope does not overshadow caution.
About The Author
