International Side Effects Week
Don’t just put up with it
A dry cough that just won’t go away. Stomach problems since you started taking a new medication. Or muscle pain for no apparent reason. Sometimes a symptom is caused by a medication. November 2–8, 2026, is International Side Effects Week. It’s a good time to say: discuss your symptoms with your pharmacist. We can often help.
A side effect doesn’t always mean you have to stop taking the medication
Some symptoms go away once your body gets used to a medication. Other symptoms may require an adjustment—for example, a different time of day to take it, a lower dose, or a different medication.
Your pharmacist knows how medications work and what their side effects are. We’ll look at when your symptoms started, what medications you’re taking, and whether there might be another cause. If necessary, we’ll consult with your primary care physician.
Do you recognize any of these examples?
A tickly cough caused by blood pressure medication
Medications such as enalapril can cause a dry cough. Cough medicines often don’t help in these cases. Is the cough persistent? The pharmacist can discuss with your doctor whether a different blood pressure medication might be a better fit.
Muscle pain with a cholesterol-lowering medication
Medications such as simvastatin can cause muscle symptoms. Report any unexplained muscle pain. We’ll also check whether other medications are contributing to the problem. If necessary, your doctor can adjust the dosage or choose a different medication. If you experience severe muscle pain or weakness—especially if you also feel ill—call your doctor immediately.
Abdominal symptoms with metformin
Metformin is used to treat diabetes. Especially at the beginning, you may experience nausea or diarrhea. Taking it during or right after a meal may help. Sometimes it helps if the doctor increases the dose more gradually. Are the symptoms persisting? Discuss this with your doctor.
Dizziness or drowsiness
Blood pressure medications and sleep aids can make you dizzy or drowsy. This can increase the risk of falls, especially in older adults. Your pharmacist will work with your primary care physician to determine whether the treatment is still appropriate.
You don’t have to be certain
Do you think a symptom is caused by your medication? Tell your pharmacy technician or pharmacist. Ideally, note when it started and bring your medication list with you. Do not change or stop your medications on your own. If you experience severe symptoms, seek medical help immediately. Call 112 if you have severe shortness of breath or a swollen tongue or throat.
Report your experience to Lareb
You can report a possible side effect via lareb.nl. Even if you’re not sure whether the medication is the cause, or if the side effect is already listed in the package insert. Your report helps us learn more about side effects. Reporting does not replace medical advice. You’re welcome to stop by our pharmacy. Prefer to call? Our pharmacy technicians and pharmacists are also happy to help you over the phone.