Therapeutic and prophylactic agents for peptic ulcers

A unit dosage therapeutic and/or prophylactic agent for peptic ulcers comprising in an amount effective to therapeutically and/or prophylactically treat peptic ulcer, a cyclohexane derivative represented by formula (I):

• ##STR7## wherein A represents a group shown by formula, >CH.sub.2, ##STR8## wherein X represents ethynylene, vinylene or ethylene, Y represents oxo or a hydroxy group;
• R.sup.1, R.sup.4 and R.sup.5 each represents an alkyl group;
• R.sup.2 represents a hydrogen atom or a group shown by --OR.sup.8 ;
• R.sup.3 represents a hydrogen atom or an alkyl group;
• R.sup.6 represents a hydrogen atom, oxo or a group shown by --OR.sup.8 ;
• and R.sup.7 represents a hydrogen atom or a group shown by --OR.sup.8, wherein R.sup.8 represents a hydrogen atom or an organic residue, and a pharmaceutically acceptable carrier.