Here are some important things to know about pharmacies and medication in the Netherlands:
A chemist or drogist (drugstore) supplies non-prescription medications, baby items, general toiletries, cosmetics, etc.
An apotheek (pharmacy) is the only outlet for prescription drugs. Pharmacies also sell other items, such as over-the-counter medicines, vitamins, and special baby foods. They will also provide advice on taking medication.
The Dutch system is rather restrictive. You may find that a prescription is necessary for medication you were able to buy over the counter in your home country.
The easiest time to register with a pharmacy is at the same time that you register with a doctor.
Pharmacies have 24/7 coverage, based on the same system as doctors.