Fujisawa Pharmaceutical Company, Ltd.

Mitsutaka Kanamaru

Mitsuyoshi Nakashima

Akira Sugiyama

Masato Terakawa

Haruo Horiai

Takaharu Ono

A method for treating edema or hypertension which comprises administering an effective amount of a quinazoline derivative of the general formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 each is a hydrogen atom or a halogen atom or a pharmaceutically acceptable salt thereof to a human being in need of said treatment.

Diuretic or antihypertensive composition

The invention relates to a method for preventing and/or treating gout and hyperuricemia which comprises administering a uricosuric effective amount of a quinazoline derivative of the general formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 each is a hydrogen atom or a halogen atom or a pharmaceutically acceptable salt thereof to a human being in need thereof.

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Nagoya, Japan

Mitsutaka Kanamaru