2-(Hydroxy-phenyl)-indoles and process for their production

A pharmaceutical composition comprising an effective amount of 10 to 150 mg of a compound of the formula:

• ##STR14## where R.sub.1 is hydrogen, a hydroxy group, or a C.sub.2 -C.sub.6 -alkanoyloxy group, R.sub.2 is hydrogen, a hydroxy group, a C.sub.2 -C.sub.6 -alkanoyloxy group or a halogen atom, R.sub.3 is a C.sub.1 -C.sub.6 alkyl group, R.sub.4 is hydrogen or a C.sub.1 -C.sub.6 -alkyl group, R.sub.5 is a hydroxy group or a C.sub.2 -C.sub.6 -alkanoyloxy group, R.sub.6 is hydrogen, a halogen atom, a hydroxy group, or a C.sub.2 -C.sub.6 -alkanoyloxy group, and R.sub.7 is hydrogen or a halogen atom and a pharmaceutically acceptable carrier.