A drive and dosing device is described for an injection device for administering a fluid product, in particular a medication, wherein the drive and dosing device can be adjusted to a product dose to be administered. The drive and dosing device has, among other things, a coupling which, upon activation of an activation element, enables rotation of a rotation element relative to a housing, wherein by disengaging the activation element, the rotation of the rotation element relative to the housing is blocked.
