Man Warns of 'Horrible' Side Effects from Weight Loss Drug Mounjaro

Antony Hawman's journey highlights both the transformative power and significant challenges of GLP-1 receptor medications.

Published on Mar. 5, 2026

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Antony Hawman, a 48-year-old Londoner, lost six stone using the weight loss drug Mounjaro, but his experience was marked by severe side effects like vomiting, diarrhea, and dehydration. His story underscores the reality that while GLP-1 medications can be transformative, they are not a magic bullet, and managing side effects is crucial. As the use of these drugs becomes more widespread, scientists are exploring alternative weight loss solutions that may provide similar benefits without the unpleasant side effects.

Why it matters

Drugs like Mounjaro, Ozempic, and Wegovy have revolutionized weight management, offering hope to individuals who have struggled for years. However, the widespread adoption has also brought increased attention to their side effects, most commonly nausea and vomiting. Antony's experience highlights the importance of combining medication with lifestyle changes and the need for more personalized, tolerable weight loss treatments.

The details

Hawman, who weighed 123kg (19.5 stone) at his heaviest, found Mounjaro appealing as it addressed his long-standing battle with food cravings. The medication helped quiet the 'food noise', enabling him to lose a substantial amount of weight. However, he faced a difficult period with debilitating side effects, which he was able to manage by reducing his dosage and incorporating a probiotic, Symprove, into his daily routine.

  • Antony Hawman weighed 123kg (19.5 stone) at his heaviest.

The players

Antony Hawman

A 48-year-old Londoner who lost six stone using the weight loss drug Mounjaro.

Mounjaro

A GLP-1 receptor drug that has revolutionized weight management, offering hope to individuals who have struggled for years.

Ozempic

A GLP-1 receptor drug that has revolutionized weight management, offering hope to individuals who have struggled for years.

Wegovy

A GLP-1 receptor drug that has revolutionized weight management, offering hope to individuals who have struggled for years.

Symprove

A probiotic that Antony Hawman incorporated into his daily routine to help manage the side effects of Mounjaro.

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What they’re saying

“The medication helped quieten what he called the 'food noise', enabling him to lose a substantial amount of weight – dropping from XL/XXL to a medium and a size 30/32 waist.”

— Antony Hawman (newsy-today.com)

What’s next

Scientists are actively exploring alternatives to GLP-1 medications, aiming to unlock weight loss solutions without the unpleasant side effects. Research at Syracuse University is focusing on 'support' cells in the brain – glia and astrocytes – and their potential role in appetite reduction.

The takeaway

Antony Hawman's experience underscores the importance of combining medication with lifestyle changes and the need for more personalized, tolerable weight loss treatments. As the use of GLP-1 medications becomes more widespread, the search for alternative solutions that can provide similar benefits without the unpleasant side effects is crucial.