Lisinopril contains titanium dioxide?

Does lisinopril contain titanium dioxide?

Some lisinopril tablets use titanium dioxide as an inactive ingredient, typically as a colorant for the tablet’s shell or film coating. Whether a specific product contains it depends on the manufacturer and the exact strength (for example, 5 mg vs. 20 mg) and whether the tablet is coated or uncoated.

If you want to confirm for your exact tablet, check the “Inactive ingredients” section on the package insert or labeling for your specific manufacturer and NDC/strength.

Why would titanium dioxide be included in lisinopril?

Titanium dioxide is commonly used in tablet coatings to provide color and consistent appearance. It is not an active ingredient and does not lower blood pressure by itself.

Is this something patients should worry about?

Most patients take lisinopril without issue. Safety concerns about titanium dioxide depend on exposure level and whether it is used as a coating pigment versus other forms. If you have a known sensitivity or allergy to tablet dyes/coatings, the most reliable approach is to verify the excipients for your exact product and ask a pharmacist or prescriber for an alternative brand if needed.

How to check quickly on your bottle

Look for:
- The exact strength and manufacturer (often shown on the bottle)
- The NDC number
- The tablet’s package insert or the online label for that NDC, then review “Inactive ingredients” for “titanium dioxide”

If you share the strength and manufacturer (or the NDC from your bottle), I can help you pinpoint whether titanium dioxide appears in that specific lisinopril product’s inactive-ingredient list.