Abstract: The invention relates to weight gain-increasing compositions, particularly fodder supplement, premix, drinking water supplement, bolus and/or microcapsule containing 0.001 to 90% by weight of 1-(3,5-dihydroxyphenyl)-2-(tertiary butylamino)-ethanol or a physiologically acceptable acid addition salt thereof as active ingredient in admixture with inert solid and/or liquid carrier(s).

Abstract: The compounds of the general Formula I ##STR1## (wherein R.sup.1 and R.sup.2 may be the same or different and each stands for hydrogen, hydroxy, C.sub.1-6 alkoxy, C.sub.1-6 alkoxy-C.sub.1-6 alkoxy, C.sub.2-6 alkenyloxy or phenyl-(C.sub.1-3 alkoxy), or R.sup.1 and R.sup.2 together form C.sub.1-2 alkylenedioxy; with the proviso that at least one of symbols R.sup.1 and R.sup.2 is other than hydrogen and with the further proviso that R.sup.1 and R.sup.2 can not represent 3,4-dimethoxy substitution) andtheir pharmaceutically acceptable acid addition salts exhibit useful analgesic, antipyretic, anti-inflammatory, anti-anginal and antioxidant effect.

Abstract: The invention relates to a process for the preparation of sustained release solid pharmaceutical compositions having an active ingredient content of at least 80% and possessing a structure which loosens in aqueous medium but does not disintegrate to discrete particles within 4 hours which comprises coating the particles of the active ingredient in a liquid medium with a water insoluble polymer--preferably with an ethyl cellulose polymer film--and thereafter admixing the coated crystals with at least one disintegrating agent being capable of swelling in aqueous medium and other auxiliary agents conventionally used in pharmaceutical industry and pressing the mixture into tablets.The advantage of the process of the present invention is that it is readily feasible with a very wide range of active ingredients and provides sustained release tablets having a high active ingredient content.