The invention relates to a device (10; 10a) for controlling pharmaceutical products (1) in particular, hard gelatin capsules, by means of a radiation source (11) preferably designed as an X-ray source, comprising a storage device (13) which receives the products (1) in an uncontrolled manner, and from which the products (1) are transferred to a transport element (15) in which the products (1) are arranged such that they form at least one row. The products (1) are transported in a clocked manner in the radiation area (25) of the radiation source (11) which exposes the products (1) to radiation, preferably perpendicular to the longitudinal direction thereof. A first stopping device (20) for separating the products (1) in the row is arranged upstream of the radiation source (11) in the direction of transportation (18) of the products (1), and at least one sensor element (28, 28a) coupled to an evaluation device (30) captures the radiation which passed through the products (1). According to the invention, at least two products (1) are separated from the row by means of the first stopping device (20) and are simultaneously positioned in the radiation area (25) and the image of the product (1) is captured by means of the at least one sensor element (28; 28a).