A liquid dispenser is for the delivery of pharmaceutical liquids, including a droplet dispenser, the liquid reservoir thereof being formed by a squeezable bottle body. Two measures secure the liquid dispenser, namely the provision of a cover body, an application of force on the squeezable bottle body being able to be prevented thereby, as well as a cap with a rotatable locking ring. The removal of the cap and the transfer of the cover body into a use position requires the deformation of an annular partial element.