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GLP-1 Side Effect Treatments

GLP-1 medications like Wegovy and Mounjaro may cause side effects such as nausea, vomiting, diarrhea, constipation, bloating, and dry mouth. Most are short-lived, but some may persist and require medical advice. At Ashcroft Pharmacy, you’ll find a range of treatments to help manage these side effects, whether they come from GLP-1 medications or other causes.

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Info: Before issuing a treatment, you’ll need to answer a short assessment so we can recommend the right treatment for you.

GLP-1 Side Effect medications

PLPepto-Bismol Liquid Suspension
Pepto-Bismol Liquid Suspension
From £7.68
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STSenna Tablets 7.5mg 60 Tablets
Senna Tablets 7.5mg 60 Tablets
From £3.99
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OGOralieve Gel | 50ml
Oralieve Gel | 50ml
From £8.25
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SSSaliveze Spray 50ml – Fast Relief for Dry Mouth
Saliveze Spray 50ml – Fast Relief for Dry Mouth
From £6.50
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CIColpermin IBS Capsules (20)
Colpermin IBS Capsules (20)
From £8.82
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POPeppermint Oil Capsules 84s
Peppermint Oil Capsules 84s
From £3.30
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GPGaviscon Peppermint Flavour Tablets
Gaviscon Peppermint Flavour Tablets
From £7.99
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GDGaviscon Double Action Mint Tablets
Gaviscon Double Action Mint Tablets
From £7.99
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SDSalivix Dry Mouth Pastilles – 50 Pack
Salivix Dry Mouth Pastilles – 50 Pack
From £7.58
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DFDioralyte Flavour Sachets
Dioralyte Flavour Sachets
From £5.99
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LCLoperamide 2mg Capsules - Treat Diarrhoea
Loperamide 2mg Capsules - Treat Diarrhoea
From £2.49
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GLP-1 Side Effect Key Information

New weight management treatments, such as Wegovy (semaglutide) and Mounjaro (tirzepatide), can be highly effective; however, some people may experience side effects during the early stages or adjustment phase. 

This page provides practical advice and guidance on managing GLP-1 side effects, including helpful tips and supportive medications. At Ashcroft Pharmacy, we offer expert solutions to help you stay comfortable and on track with your weight management plan.

Most are mild and temporary, but some may need medical attention. Including:

Common Side Effects:

  • Nausea and vomiting usually improve over time.
  • Diarrhoea or constipation – can occur as your body adjusts.
  • Stomach pain or bloating – mild cramping is common.
  • Headaches or fatigue may appear in the first few weeks.

Less Common:

  • Low blood sugar (hypoglycaemia) – mainly if you take other diabetes medicines.
  • Injection site reactions – redness or irritation at the injection site.
  • Pancreatitis or gallbladder issues – rare, but seek medical attention if severe abdominal pain occurs.

How to Reduce Side Effects:

  • Take the medication exactly as prescribed.
  • Stay hydrated and move gently to ease digestion.
  • Eat small, low-fat meals.
  • Report persistent or severe symptoms to your doctor.

Learn more

Written and reviewed by our qualified team — Mr Suhail Jamil, Superintendent Pharmacist (GPhC 2069518).