Eva / qu effervescent suppositories against constipation, 6 pcs. For adults. Eva / qu suppositories help to defecate by unblocking the feces accumulated in the rectal bubble. Due to their composition, they dissolve when inserted into the anus, releasing gas bubbles that increase the pressure on the anal walls. This stimulates the peristaltic movements of the last section of the intestine and makes it easier to defecate. Eva / qu suppositories work locally, do not contain systemic laxatives. Sodium bicarbonate and potassium bitartrate suspended in water-soluble polyethylene glycol.