The invention relates to an autoinjector comprising a body (1) with an approximately cylindrical general shape that is capable of housing a reservoir containing a fluid product and comprising a plunger (P) and a needle, such as a pre-filled syringe, said body (1) comprising a distal portion, a median portion and a proximal portion, a removable cap (20) being secured, prior to the use of the autoinjector, to said proximal portion of said body (1), wherein said median portion of said body (1) has an approximately cylindrical general shape and comprises first anti-rolling means (125), such as at least one radial projection, forming at least one non-cylindrical median area in the outer profile of said median portion of said body (1) and said removable cap (20) has an approximately cylindrical general shape and comprises second anti-rolling means (21) forming at least one non-cylindrical proximal area in the outer profile of said removable cap (20) and/or said distal portion of said body (1) has an approximately cylindrical general shape and comprises third anti-rolling means (115), such as at least one radial projection, forming at least one non-cylindrical distal area in the outer profile of said distal portion of said body (1).
