Drug interactions
Aspirin / citric acid / sodium bicarbonate + Tolbutamide
Severity: Moderate
Aspirin / citric acid / sodium bicarbonate and Tolbutamide: 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
This effervescent analgesic delivers a full analgesic dose of aspirin, which can potentiate tolbutamide and cause hypoglycemia. Alkalinization from bicarbonate may increase salicylate excretion, but the net effect is still potentially relevant.
What this interaction means in plain words
Aspirin / citric acid / sodium bicarbonate and Tolbutamide 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
Salicylate displaces sulfonylureas from plasma proteins and has intrinsic glucose-lowering activity.
What to do
Monitor blood glucose when the product is used regularly. Adjust the tolbutamide dose if hypoglycemia occurs.
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 Tolbutamide
- Glyburide-metformin + Tolbutamide Major
- Insulin degludec-liraglutide + Tolbutamide Major
- Aceclofenac + Tolbutamide Moderate
- Acemetacin + Tolbutamide Moderate
- Acetylsalicylic acid + Tolbutamide Moderate
- Albiglutide + Tolbutamide Moderate
Frequently asked questions
Can I take Aspirin / citric acid / sodium bicarbonate with Tolbutamide?
MediHelp rates the interaction as moderate. Aspirin / citric acid / sodium bicarbonate and Tolbutamide 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. This effervescent analgesic delivers a full analgesic dose of aspirin, which can potentiate tolbutamide and cause hypoglycemia. Alkalinization from bicarbonate may increase salicylate excretion, but the net effect is still potentially relevant.
How serious is the interaction between Aspirin / citric acid / sodium bicarbonate and Tolbutamide?
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 blood glucose when the product is used regularly. Adjust the tolbutamide dose if hypoglycemia occurs.
What other medicines interact with Tolbutamide?
MediHelp also lists interactions of Tolbutamide with, for example, Glyburide-metformin, Insulin degludec-liraglutide, Aceclofenac. The full list is on the Tolbutamide page.
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