Sodium Hydroxide

Sodium Hydroxide in Medications

Sodium Hydroxide: A Common Pharmaceutical Ingredient
Sodium hydroxide is used in medications as a pH adjuster. It does not treat medical conditions, but it plays an important role in formulation processing.

What Is Sodium Hydroxide?

Sodium hydroxide is a strong base used in small amounts. In pharmaceuticals, it neutralizes or adjusts pH. It may appear under several ingredient names on medication labels.

Why Is Sodium Hydroxide Used in Medications?

Sodium hydroxide is used because it:

  • Raises pH and neutralizes acids
  • Improves solubility of APIs
  • Supports manufacturing processes
  • Ensures formulation stability

These properties make it useful in both prescription and over-the-counter products.

Ingredient Names to Look For

Sodium hydroxide may be listed as:

  • Sodium hydroxide
  • Caustic soda
  • NaOH

Where Does Sodium Hydroxide Appear?

It is commonly found in:

  • Liquid formulations
  • Injectables
  • Topicals
  • Combination products (as processing aid)

How to Check a Medication’s Ingredient List

Ingredient lists can vary by manufacturer and dosage form.
Use PillParser to scan a medication and view its ingredient list.





Adding the manufacturer filters generics (fillers/dyes often differ).

To keep PillParser free, anonymous scans are limited.


Understanding ingredient differences is especially important for individuals with known sensitivities. RxAllergyScan.com allows users to compare medication ingredients against their personal allergen profile.

Educational Note

This page provides educational information only and does not make medical claims.