Wegovy nausea: practical help and when to seek advice

Track the pattern

Nausea often appears after you start treatment or after a dose increase. Not every episode comes from the injection. Infection, migraine, pregnancy, alcohol, another medicine or a digestive problem may play a part. Timing gives your clinician a clue, but on its own it cannot pin down the cause.

Keep a short diary of your injection date, when nausea starts, meal sizes, any vomiting and how much you manage to drink. Note what the nausea stops you doing. If it disrupts work, sleep or normal eating, raise it with your clinician even if you have not vomited.

Make eating easier

Smaller meals, eaten slowly, and stopping when you feel comfortably full often work better than finishing a large plate. Pick foods you can manage. Do not force down a heavy meal because the clock says so. Many people find rich, greasy or strong-smelling food harder.

Keep these changes from turning into a long list of banned foods. Your aim is enough nourishment across the day. If your choices shrink to a handful of foods, or every meal causes distress, ask for clinical and dietitian support. Do not keep cutting back.

Stay hydrated

Take small, frequent sips if a large drink makes you feel worse. Check you are passing urine normally. Dizziness when you stand, a dry mouth and dark or scanty urine may point to dehydration, especially when nausea comes with vomiting or diarrhoea.

If you have heart failure, kidney disease or a prescribed fluid limit, your fluid advice may need adjusting. Do not follow a fixed litres-per-day target from the internet without taking that history into account. A pharmacist or clinician can advise on oral rehydration products when they suit you.

Medicines and dose decisions

Ask a pharmacist or prescriber before you take an anti-sickness medicine. The right choice depends on the likely cause, your other medicines and your medical history. Treating severe symptoms with another medicine again and again without reviewing your Wegovy plan may delay spotting an underlying problem.

Do not move up a dose in the hope that significant nausea will settle by itself. Your prescriber may delay the increase or change your plan. Record exactly what you have taken so any later restart or dose decision reflects your real exposure.

Symptoms that need urgent help

If you might be pregnant, consider that possibility before you put nausea down to the medicine. Contact your clinician promptly if a test is positive. A common symptom is not always a harmless one. Treatment that is working should still leave you able to eat, drink and get on with your day.