Aktiebolaget Hassle

Kenneth Lundstrom

Enar I Carlsson

Hakan S Larsson

Viola I Samuelsson-Junggren

Gunhild W Von Wittken Sundell

A pharmaceutical preparation containing as active ingredient a compound of the formula ##STR1## or a therapeutically acceptable salt thereof in which formula R.sup.1 and R.sup.2 are the same or different and each selected from the group consisting of H, CF.sub.3, NO.sub.2, --COOCH.sub.3, --COOC.sub.2 H.sub.5, alkyl containing 1-7 carbon atoms, halogen, alkoxy, containing 1-5 carbon atoms, and alkanoyl containing 1-4 carbon atoms;

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Svanesund, Sweden

Kenneth Lundstrom