1. An antacid and laxative tablet containing magnesium oxide particles as the main component, in which (a) the average diameter of the secondary particles, measured by laser diffraction scattering, of magnesium oxide particles is from 0.5 to 10 μm, (b) the content of oxide particles magnesium is from 85 to 96 wt. -%, (c) the content of crystalline cellulose as a binder is from 2 to 8 wt. -%, (d) the content of croscarmellose sodium as a disintegrating agent-I is from 0.8 to 2.5% mass., (e) the content of insoluble watering ilpirrolidona as a disintegrating agent-II is from 1 to 3.5 wt.%, and (f) the content of lubricant is from 0.5 to 2% mass.2. The antacid and laxative tablet according to claim 1, in which the particles of magnesium oxide have an average diameter of secondary particles, measured by laser diffraction scattering, from 1 to 7 microns. The antacid and laxative tablet according to claim 1, in which the content of magnesium oxide particles is from 88 to 92% of the mass. The antacid and laxative tablet according to claim 1, wherein the content of crystalline cellulose as a binder is from 4 to 6% by weight. The antacid and laxative tablet according to claim 1, wherein the content of croscarmellose sodium as a disintegrating agent-I is from 1.2 to 1.8% by weight. The antacid and laxative tablet according to claim 1, wherein the content of insoluble polyvinylpyrrolidone as a disintegrating agent II is from 1.5 to 2.8% by weight. The antacid and laxative tablet of claim 1, wherein the lubricant is calcium stearate. The antacid and laxative tablet according to claim 1, which has a domed shape on each upper and1. Антацидная и слабительная таблетка, содержащая частицы оксида магния в качестве основного компонента, в которой (a) средний диаметр вторичных частиц, измеренный методом лазерной дифракции рассеяния, частиц оксида магния составляет от 0,5 до 10 мкм, (b) содержание частиц оксида магния составляет от 85 до 96% масс., (c) содержание кристаллической целлюло
