UK cannabis prescriptions are not valid abroad. Laws across Europe vary, so do...

https://oscar-wiki.win/index.php/Spain_Cannabis_Laws_Feel_Confusing:_Can_I_Import_Prescribed_Medical_Cannabis%3F

UK cannabis prescriptions are not valid abroad. Laws across Europe vary, so do not assume you are protected. To travel safely, carry your original prescription and a signed doctor letter. Keep all meds in their original packaging at all times