When travelling to Norway, you may bring medicines for personal use. There are limits to the amounts you can bring with you.
It is the Norwegian Medicines Agency that is responsible for regulations concerning medicines. The rules vary depending on whether you are travelling to or from Norway, and they depend on the type of medicine. There are also different rules for what you may bring on holiday and what you may receive as a shipment.
At legemiddelverket.no you can find more information on how much you can bring with you and documentation requirements when travelling
Norwegian Customs may ask you to document that you are in compliance with regulations. You may be asked to present a prescription or medical certificate.