Abstract: The invention is a medicament magazine having at least one medicament chamber for use in a powder inhaler, wherein the magazine is formed from two foil strips applied to one another and the at least one medicament chamber is formed between the foil strips. The medicament chambers have an internal structure (3) which comprises in its interior a space for receiving a powdered medicament and stabilises this inner space against external mechanical influences. In another embodiment in which the internal structure preferably also has a stabilising function, the structure has means for opening one foil strip. In addition, the medicament chamber contains a retaining device which holds the internal structure on the medicament magazine after the medicament chamber has been opened.