If you want to take medical cannabis with you on vacation or when traveling, you should be careful, because not all European countries allow the import. Only in the contracting countries of the Schengen Agreement (almost all EU countries) a quantity of medical cannabis may be carried for 30 days with a kind of ID card. For this, patients need a "Certificate for carrying narcotics in the context of medical treatment - Article 75 of the Schengen Implementing Convention". The attending physician must fill out a form for the patient, who must then have it stamped at the respective state health office in his or her federal state. Medical cannabis may thus be taken to Austria, Poland, Switzerland, Greece, Holland, Spain, France and Portugal, but not to Great Britain, Ireland or Cyprus.