| abstract |
The invention concerns preparation of non-steroidal analgesics with antipyretic and antiphlogistic effect, obtained through extrusion and moulding of a melt containing in addition one or more substances in a mixture of: a) 40 to 99.5 wt% of a homopolymer of N -vinylpyrrolidone with a K value according to Fikentscher of 30; b) 0.25 to 59.75 wt% of a water-soluble copolymer of N-vinylpyrr olidone; and c) 0.25 to 10 wt% of one or more physiologically ac ceptable sodium or potassium salts, where the quantities refer to the total of the components a), b) and c). |