For a rule, you must only be carrying up to 3 months' value of medication. If anymore and also you may need to submit an application for a licence through the Spanish Agency of Drugs and Well being MerchandiseTo overview: SAE and DD report SAE and DD re­port­ing for for each­for­mance stud­ies SAE and DD re­port­ing for clin­i­cal in­ves�