Dextrose and maltodextrin are common inactive ingredients found in many medications. While they are not part of the active drug, they are often used in manufacturing and may be relevant for individuals with sensitivities to corn-derived ingredients.
What they are
Dextrose is a simple sugar derived from starch, most commonly corn.
Maltodextrin is a more complex carbohydrate, also typically derived from corn starch, though it can sometimes come from other sources such as potato or rice.
Both are widely used in pharmaceuticals as binders, fillers, or stabilizers.
Why they matter
For many people, these ingredients are not an issue. However, they may be important if you:
- Have sensitivities to corn or corn-derived ingredients
- Are trying to avoid highly processed carbohydrates
- Have experienced unexplained reactions to medications
Even small amounts used as inactive ingredients may be relevant for sensitive individuals.
Where they show up
Dextrose and maltodextrin are commonly found in:
- Tablets as binders or fillers
- Powders for oral suspension
- Chewable tablets and flavored medications
- Some liquid formulations
They may also be part of flavoring systems or stabilizing blends.
What to watch for
- Dextrose listed in inactive ingredients
- Maltodextrin listed directly
- References to starch-derived excipients
- Sweetened or flavored formulations
The source (corn vs. other starches) is not always specified on the label.
What you should do
- Review inactive ingredients when scanning medications
- Be aware that corn-derived ingredients may appear under different names
- If needed, confirm the source with your pharmacist
Instead of manually reviewing ingredient lists, you can scan your medication and compare it to your allergen profile.
NOTE: Generic medications may have different formulas depending on the manufacturer. To confirm the exact ingredients used, consult your pharmacist.
Tip for generics/store brands: Use the exact name as it appears on the bottle, e.g., “Equate” instead of “Walmart”, “GoodSense” instead of “Walgreens”, “Kirkland” instead of “Costco”. If nothing shows up, try leaving Manufacturer blank or searching the generic name only.
Educational Note
This page is for informational purposes only. It does not provide medical advice, diagnosis, or treatment guidance.