What Is the Strongest Weight Loss Prescription Drug?

Types of weight loss drugs

Some of the most popular weight loss medications, including pills and injections, are:

• Glucagon-like peptide-1 (GLP-1) receptor agonists: These injectables (e.g., Wegovy, Wegovy Tablets, Saxenda, Mounjaro) mimic a natural gut hormone, promoting feelings of fullness and reducing appetite

• Lisonopril/phentermine (Mysimba): A combination medication containing the active ingredients lisonopril to suppress appetite and phentermine to further reduce appetite and increase energy expenditure  

• Orlistat (Xenical, Alli): This unique option works by blocking the absorption of dietary fat in the gut

Strength vs. suitability: Understanding the differences

While effectiveness is important, focusing solely on the "strongest" drug isn't the answer. Here's a breakdown of key factors to consider: 

How they work: GLP-1 agonists suppress appetite, lisonopril and phentermine work together to suppress appetite and increase energy expenditure, while Orlistat targets dietary fat absorption. Understanding their mechanisms can help you choose the one that aligns with your specific needs.

How to administer: Some people may have a fear of injections and prefer to take the oral route with pills. 

Side effects: Different medications can cause varying side effects. If you're prone to stomach issues, for example, drugs that can cause digestive discomfort might not be ideal. Discussing your medical history with your doctor can help determine the best option for you. If you are worried about experiencing side effects, make sure to speak your thoughts aloud with your doctor.

How do you know which drug is suitable for you?

Certain medications may not be suitable for everyone and your healthcare provider can determine this based on your BMI, medical history, medical conditions, current medication, weight loss goals, and lifestyle. Weight loss medication is not a replacement for a healthy balanced diet and an active lifestyle. It is only after you have been unsuccessful via dietary measures and physical activity that a healthcare provider will consider you for a weight loss medication and even then, you should continue with a reduced calorie intake and an increase in physical activity. 

Weight loss medications comparison

One particular study compared semaglutide (Wegovy) weekly subcutaneous, liraglutide (Saxenda) daily subcutaneous, orlistat (oral), and naltrexone-bupropion (oral). All medications appeared to be effective, with semaglutide coming out top in terms of effectiveness. Their research also found established superiority of semaglutide for weight loss with almost similar risks of adverse effects.

The importance of diet and exercise

Ultimately, it is important to remember that weight loss medications are most effective when used in conjunction with a healthy diet and exercise plan. These medications provide a powerful tool, but they don't work in isolation. A balanced diet rich in whole foods and proper portion control ensures you're not negating the medication's effects by consuming excessive calories. Regular exercise further supports weight loss by burning calories and building muscle mass, which helps boost metabolism. This combined approach maximises your weight loss results.

Finding your perfect fit

There's no single "strongest" weight loss drug. The best choice depends on your individual needs, BMI, medical history, and lifestyle. A list of criteria needs to be met before you will be considered for prescription only medications. If you meet the BMI criteria of 27+ with a weight related medical condition or 30+ and have tried dietary and physical activity measures first then weight loss medication may be an option.  Partnering with a healthcare provider who understands your weight loss goals and overall health is essential. They can guide you through the various options, discuss potential side effects, and tailor a weight management plan that works best for you. At Pharmacy2U, our simple online consultation can determine if you meet the criteria for weight loss medication during clinical assessment and which medications you could be suitable for.