Provided is a medicament delivery device comprising an axially elongated housing, a coaxially extending plunger rod mounted with in the housing for expelling successive doses of medicament and rotateable about the axis. The plunger rod can be axially displaced from a ready-to-use position for expelling a dose of medicament to a non-ready-to-use position axially spaced from said ready-to-use position along the axis, and from said non-ready-to use position to a subsequent ready-to-use position angularly spaced from said non-ready-to use position about the axis The device further comprises an indicator member displaceably mounted onto the housing between a first angular position indicative of the ready-to-use positions and a second angular position indicative of the non-ready-to use positions.