摘要：

l. A therapeutic preparation in dosage unit form comprising a capsule containing an initial dosage of from 2 to mg. of sympathomimetic selected from the group consisting of a salt of racemic amphetamine, a salt of dextro-amphetamine, a salt of racemic desoxyephedrine anda salt of dextro-desoxyephedrineto provide a pre? I of said initial dosage and having ingestible coatings resistant to disintegration in the gastro-intestinal tract, the coatings being of varying thicknesses to provide for the gradual release of, the selected sympathomimetic, said preparation maintaining a substantially constant body level of the selected sympathomimetic over a period of about ten to twelve hours.

展开