At Earlsdon Pharmacy, we provide practical, evidence-based guidance to support safe use.
What Is Wegovy?
Wegovy contains semaglutide, a medication that mimics the GLP-1 hormone. It works by:
- Reducing appetite
- Slowing stomach emptying
- Helping control calorie intake
It is administered as a once-weekly injection alongside diet and lifestyle changes.
Common Side Effects of Wegovy
Most side effects of Wegovy are digestive and occur during the first few weeks or after dose increases.
Frequently reported:
- Nausea
- Vomiting
- Diarrhoea
- Constipation
- Abdominal pain or bloating
- Headache
- Fatigue
These are usually mild to moderate and tend to improve as your body adjusts.
Why Do These Side Effects Happen?
Wegovy slows gastric emptying and alters appetite signals. This change in digestion can temporarily disrupt the gut, leading to nausea or changes in bowel habits—especially during dose escalation.
Less Common but Serious Side Effects
Although uncommon, some reactions require prompt medical attention.
Serious side effects of Wegovy may include:
- Pancreatitis (severe, persistent abdominal pain, sometimes radiating to the back)
- Gallbladder problems (e.g., gallstones, upper abdominal pain)
- Severe dehydration (from ongoing vomiting or diarrhoea)
- Allergic reactions (rash, swelling, breathing difficulty)
- Vision changes (notably in people with diabetes)
If these occur, seek medical advice urgently.
How Long Do Side Effects Last?
| Phase | Typical Experience |
| Weeks 1–2 | Nausea and appetite changes common |
| Dose increases | Temporary return of symptoms |
| Ongoing use | Symptoms usually settle |
Persistent or worsening symptoms should be reviewed by a healthcare professional.
How to Manage Wegovy Side Effects
Practical steps to improve tolerance:
- Eat smaller, more frequent meals
- Avoid fatty or fried foods
- Stay well hydrated
- Eat slowly and stop when full
- Follow the prescribed dosing schedule exactly
These measures reduce digestive strain and improve comfort.
Who Should Use Caution?
Consult a healthcare professional before starting Wegovy if you have:
- History of pancreatitis
- Gallbladder disease
- Significant gastrointestinal disorders
- Certain thyroid conditions
- Diabetes-related eye disease
At Earlsdon Pharmacy, we can advise on suitability and safe use.
When to Seek Medical Advice
Contact a clinician if you experience:
- Inability to keep fluids down
- Severe or persistent abdominal pain
- Signs of dehydration
- Symptoms that do not improve over time
Early review helps prevent complications.
Final Thoughts
The side effects of Wegovy are often manageable and temporary, particularly with gradual dose increases and simple dietary adjustments. However, awareness of serious symptoms is important for safe treatment.
For personalised advice, medication support, or questions about Wegovy, Earlsdon Pharmacy is available to help.