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Side Effects Comparison: Mounjaro vs. Other Anorectics Available in the UK

Writer's picture: Emily LawsonEmily Lawson
A collection of medication boxes and injectable pens, including brands like Saxenda, Contrave, Ozempic, Mounjaro, and Wegovy. The packaging features various dosage details and branding on a white background with black dotted accents.

When it comes to weight loss medications, understanding the side effects, their frequency, severity, and management is crucial for making informed decisions. In this overview, we'll dive into the latest clinical data and research comparing Mounjaro (tirzepatide) with other weight loss medications available in the UK, including Wegovy (semaglutide), Saxenda (liraglutide), Ozempic (semaglutide), and others for 2024.


Frequency and Severity of Side Effects

 

Mounjaro (tirzepatide): The common side effects associated with Mounjaro include nausea, diarrhea, abdominal pain, vomiting, and constipation. Additionally, less common but notable side effects include indigestion, injection site reactions, fatigue, allergic reactions, belching, hair loss, and heartburn. While these side effects are generally temporary, persistent or severe symptoms should be discussed with a healthcare professional.


Wegovy (semaglutide): Similar to Mounjaro, Wegovy lists nausea, diarrhea, abdominal pain, vomiting, and constipation as common side effect. In clinical trials, other frequent side effects included bloating, flatulence, indigestion, and headache.


Saxenda (liraglutide): Side effects of Saxenda often overlap with those of Mounjaro and Wegovy, including nausea, vomiting, abdominal pain, and constipation. Additional reported effects are bloating, diarrhea, flatulence, and dizziness.


Ozempic (semaglutide): As a semaglutide drug, Ozempic shares many of the same side effects as Wegovy, such as nausea, diarrhea, and abdominal pain. It also lists headache, dizziness, and injection site reactions among its common side effects.


Other Anorectics: Naltrexone–bupropion (Mysimba), another weight loss medication, can cause nausea and stomach upset. It is not available through the NHS but may be obtained privately.

 

Management of Side Effects


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Mounjaro: To manage Mounjaro’s side effects, it's advisable to take the medication with food to reduce nausea, eat small, frequent meals, stay hydrated throughout the day, and avoid fatty foods. Bland foods like toast or rice can be particularly helpful.


Wegovy: For those taking Wegovy, drinking ice-cold drinks in small sips and avoiding greasy, fatty foods can mitigate nausea. Bland foods such as crackers, rice, applesauce, or bananas are also recommended. Avoiding physical activity immediately after eating can further reduce discomfort.


Saxenda: Similar to Mounjaro and Wegovy, Saxenda users are encouraged to stay hydrated, eat bland foods, and avoid large, heavy meals. Careful monitoring of the diet can significantly alleviate side effects.


Ozempic: The management of side effects for Ozempic aligns closely with that of Wegovy given their similar active ingredient, semaglutide. Hydration and a diet low in fat can help manage gastrointestinal side effects.

 

UK-Specific Guidelines for 2024


A diverse group of professionals sitting in a circle, engaged in a lively discussion. They are smiling and holding notebooks, with light streaming through a window in the background.

In the UK, weight loss injections like Wegovy, Mounjaro, and Saxenda are available and have been proven effective through clinical trials These medications are accessible through various weight loss programs and, in some cases, via the NHS.


Wegovy on the NHS

Patients eligible for Wegovy through the NHS include those with a weight-related health condition, a BMI of 35 or more, and patients who participate in a specialist weight management service.


Saxenda and Semaglutide Variants

Saxenda (liraglutide) and semaglutide variants like Wegovy and Ozempic play significant roles in the management of obesity. Saxenda requires daily injections, while Wegovy and Ozempic are administered weekly.

 

The medications are administered via prefilled, multi-dose or single-dose injection pens, which patients can self-inject subcutaneously in the abdomen, thigh, or upper arm. Both adults and children aged 12 and older can use these injections for weight management with doses adjusted accordingly.

 

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