In 2026, you can bring up to a three-month supply of personal medication into Spain, but strict protocols apply. You should carry medicines in their original pharmacy packaging with your name clearly visible and have a copy of the prescription or a doctor's letter. For standard medications, this is straightforward. However, if your treatment includes narcotic or psychotropic substances (common in some ADHD meds or strong painkillers), you must obtain a special permit from the Spanish Agency for Medicines and Health Products (AEMPS) at least 10 days before travel. You can apply by emailing [email protected] with your medical certificate and travel details. This permit is valid for three months and ensures you won't face issues at border control.