A method for producing gas from a well with low pressure involves running a bottom hole pressure test to graph a P-Q curve. The present invention relates to a prophylactic andor therapeutic agent for hyperlipidemia, a prophylactic andor therapeutic agent for obesity or diabetes mellitus, and a prophylactic andor therapeutic agent for metabolic syndrome, each agent including a compound represented by the formula, or a salt thereof, and a statin, particularly pitavastatin, in combination. In accordance with a preferred embodiment of our invention, the at least one second electrode is C-shaped, and the angle subtended by the C-shape is greater than 180 degrees. 01 to 10% of one or several minor phases selected from the group consisting of calcium sulphates, alkali sulphates, perovskite, calcium aluminates, gehlenite, free lime and periclase, andor a vitreous phase, and additives including at least sodium and boron present in the following quantities, by weight as compared to the total weight of the clinker: from 0.