Drug interactions
Dichlorphenamide + Senna
Severity: Moderate
Dichlorphenamide and Senna: 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 promotes renal potassium loss and metabolic acidosis, while chronic or excessive senna use can cause diarrhea with gastrointestinal potassium loss. Together they may produce clinically significant hypokalemia, which is relevant in patients treated for periodic paralysis.
What this interaction means in plain words
Dichlorphenamide and Senna 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; Senna belongs to Gastrointestinal Tract.
Why it happens
Additive potassium depletion through carbonic anhydrase inhibition-related renal kaliuresis and laxative-induced intestinal potassium loss.
What to do
Monitor serum potassium and bicarbonate when senna is used regularly or at high doses with dichlorphenamide. Correct hypokalemia and limit laxative use to short courses.
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 Dichlorphenamide
Other interactions of Senna
Frequently asked questions
Can I take Dichlorphenamide with Senna?
MediHelp rates the interaction as moderate. Dichlorphenamide and Senna 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 promotes renal potassium loss and metabolic acidosis, while chronic or excessive senna use can cause diarrhea with gastrointestinal potassium loss. Together they may produce clinically significant hypokalemia, which is relevant in patients treated for periodic paralysis.
How serious is the interaction between Dichlorphenamide and Senna?
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 when senna is used regularly or at high doses with dichlorphenamide. Correct hypokalemia and limit laxative use to short courses.
What other medicines interact with Dichlorphenamide?
MediHelp also lists interactions of Dichlorphenamide with, for example, Acetazolamide, Acetylsalicylic acid, Ammonium chloride. The full list is on the Dichlorphenamide page.
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