Kräuterlax® (Aloin)

Kräuterlax® (Aloin) acts on the gastrointestinal tract to alleviate constipation and facilitate bowel preparation.

• Constipation: provides relief by stimulating colonic peristalsis and increasing fluid secretion.
• Occasional bowel cleansing: assists in preparing the colon before diagnostic procedures by promoting evacuation.
• Functional bowel irregularity: helps normalize bowel movements in patients with intermittent transit delays.

• Aloin exerts its laxative effect by irritating the colonic mucosa, which triggers the release of prostaglandins and other mediators. This irritation enhances fluid secretion into the lumen and stimulates smooth‑muscle contraction, thereby increasing intestinal peristalsis and accelerating the transit of fecal matter toward evacuation.

Aloin may cause a range of adverse reactions, most of which are related to its stimulant action on the colon.

Common Side Effects

• Abdominal cramping or pain
• Loose stools or diarrhea
• Nausea or mild vomiting
• Urgency to defecate
• Flatulence or bloating

Serious or Rare Side Effects

• Severe dehydration due to excessive fluid loss
• Electrolyte disturbances, especially low potassium
• Rectal bleeding or severe abdominal pain
• Allergic reactions such as rash or angioedema
• Melanosis coli with prolonged use

Before using Kräuterlax®, consider the following safety measures.

• Assess hydration status: ensure adequate fluid intake to prevent dehydration.
• Avoid prolonged use: limit duration to short‑term relief to reduce risk of dependence.
• Use with caution in inflammatory bowel disease: irritation may exacerbate symptoms.
• Monitor electrolyte levels: especially potassium, during extended therapy.
• Store at room temperature: keep in the original pack, protect from moisture and direct sunlight.

Aloin can interact with other medicines, affecting safety or effectiveness.

Major Interactions (Avoid)

• Potassium‑sparing diuretics: may worsen electrolyte imbalance.
• Digitalis glycosides: increased risk of hypokalemia‑related cardiac effects.
• Anticholinergic agents: may reduce the laxative efficacy of Aloin.

Moderate Interactions (Monitor Closely)

• Lithium: altered renal clearance may increase toxicity.
• Tetracycline antibiotics: reduced absorption when taken together.
• Iron supplements: decreased absorption of both agents; separate dosing times.