Our website uses cookies so that we can improve your experience. Learn more about our cookies


Laevolac 10mg/15ml Syrup 20 sachets

Non-prescription medicine indicated in the treatment of chronic constipation.

Ref. 9310128
Tax included


Shipping from:

 Calculate Shipping Cost


Laevolac 10mg/15ml Syrup is indicated for the symptomatic treatment of chronic constipation (in all cases).

Active substances: Lactulose.

In the colon, lactulose is broken down into low molecular weight organic acids. These acids lead to a reduction in the pH in the colonic lumen and, due to an osmotic effect, to an increase in the volume of the colon contents. These effects stimulate colonic peristalsis, normalizing stool consistency. Constipation disappears, and the physiological rhythm of the colon is re-established.

Dosage and method of administration:

As each organism reacts differently to Laevolac, it is necessary for each patient to determine the optimal dose over time. The average recommended dosage is 30 ml of syrup (each 15 ml sachet contains 10 g of lactulose; one tablespoon corresponds to 15 ml) in two doses, one before breakfast and one before lunch, diluted in a glass of water. Adults - Starting dose: 10-20 g lactulose syrup 15-30 ml/day (1 to 2 tablespoons or 1 to 2 sachets of 15 ml) in a single dose or divided into two doses. In maintenance, doses are usually halved ie 5-10 g 7.5-15 ml/day (1/2 to 1 tablespoon/day). Children - The initial dose should be: 5-10 years: 10 ml in two daily doses (one teaspoon corresponds to 5 ml). 1-5 years: 5 ml /day (1 teaspoon) Age under 1 year: 2.5 ml in two daily doses. To obtain a quick laxative effect, 1-3 tablespoons of Laevolac should be diluted in 1/8 to 1/4 liter of water, coffee, tea, fruit juices or milk, taken in the morning, on an empty stomach. Bowel movements usually occur about 2 hours later, resulting in soft or watery stools (rapid gag reflex). Laevolac alone, in an adequate dose, is able to eliminate severe constipation. The intestinal transit regulating effect of Laevolac may persist for several days in some patients; in this case it is sufficient to take Laevolac every other day or every three days.


Hypersensitivity to the active substance(s) or to any of the excipients. Galactosemia, lactose intolerance, galactose-free diet, intestinal obstruction or suspected ileus.

If in doubt or if symptoms persist, consult your doctor or pharmacist.

In accordance with current legislation, non-prescription medicines in Portugal can only be delivered to the municipalities of Maia, Gondomar, Matosinhos, Porto, Santo Tirso, Trofa, Valongo and Vila do Conde. This limitation does not apply to shipments to other Member States of the European Union.