Drug interactions
Dichlorphenamide + Lactulose
Severity: Moderate
Dichlorphenamide and Lactulose: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Dichlorphenamide causes renal potassium and bicarbonate loss, while lactulose-induced diarrhea adds further potassium and bicarbonate loss. Together they can worsen hypokalemia and metabolic acidosis.
What this interaction means in plain words
Dichlorphenamide and Lactulose can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Dichlorphenamide belongs to Miscellaneous; Lactulose belongs to Gastrointestinal Tract.
Why it happens
Additive potassium depletion and metabolic acidosis from carbonic anhydrase inhibition and diarrheal losses.
What to do
Monitor serum potassium and bicarbonate regularly and avoid lactulose doses that produce diarrhea. Correct electrolyte abnormalities promptly.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Lactulose
Other interactions of Dichlorphenamide
Frequently asked questions
Can I take Dichlorphenamide with Lactulose?
MediHelp rates the interaction as moderate. Dichlorphenamide and Lactulose can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Dichlorphenamide causes renal potassium and bicarbonate loss, while lactulose-induced diarrhea adds further potassium and bicarbonate loss. Together they can worsen hypokalemia and metabolic acidosis.
How serious is the interaction between Dichlorphenamide and Lactulose?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor serum potassium and bicarbonate regularly and avoid lactulose doses that produce diarrhea. Correct electrolyte abnormalities promptly.
What other medicines interact with Lactulose?
MediHelp also lists interactions of Lactulose with, for example, Deflazacort, Aluminum hydroxide, Calcium carbonate. The full list is on the Lactulose page.
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