Abstract: A powdery complex is obtained by combining a useful substance such as vitamin E and liquid fatty oil with albumin. This powdery complex has excellent storage stability and can keep the useful substance contained therein stably for a long time.
Abstract: A guanidinomethylbenzoic acid derivative represented by the formula ##STR1## or a salt thereof. An antiulcer agent comprising the compounds of the afore-said formula as an effective ingredient is also disclosed.