Drug interactions
Arginine + Dichlorphenamide
Severity: Moderate
Arginine and Dichlorphenamide: 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 is a carbonic anhydrase inhibitor that causes bicarbonate loss and metabolic acidosis. Arginine hydrochloride delivers a chloride and acid load that can add to this acidosis, and also raises potassium, which may worsen electrolyte disturbance.
What this interaction means in plain words
Arginine and Dichlorphenamide 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.
Why it happens
Additive acid-base effects: carbonic anhydrase inhibition causes renal bicarbonate wasting while arginine hydrochloride adds an acid load.
What to do
Monitor serum bicarbonate, chloride and potassium when the two are given together, particularly with intravenous arginine. Reduce the dichlorphenamide dose or stop one agent if persistent acidosis develops.
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
Frequently asked questions
Can I take Arginine with Dichlorphenamide?
MediHelp rates the interaction as moderate. Arginine and Dichlorphenamide 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 is a carbonic anhydrase inhibitor that causes bicarbonate loss and metabolic acidosis. Arginine hydrochloride delivers a chloride and acid load that can add to this acidosis, and also raises potassium, which may worsen electrolyte disturbance.
How serious is the interaction between Arginine and Dichlorphenamide?
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 bicarbonate, chloride and potassium when the two are given together, particularly with intravenous arginine. Reduce the dichlorphenamide dose or stop one agent if persistent acidosis develops.
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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