Overview of Alterna
What is Alterna? Identity, Composition, and Purpose
| Property | Description |
|---|---|
| Active ingredient | Aluminum Hydroxide |
| Form | Oral Suspension (Liquid/Gel), Capsule, Tablet |
| Pharmacological class | Antacid, Phosphate Binder |
| Common use | Relief of acid indigestion/heartburn |
| Origin | Derived from a naturally occurring mineral |
What Type of Medicine is Alterna (Aluminum Hydroxide)?
Alterna is a brand name for a pharmaceutical product containing the active ingredient Aluminum Hydroxide, a basic inorganic salt. This compound is clinically recognized for its dual pharmacological function, classified both as an Antacid and as a Phosphate Binder. The antacid properties place the medicine under the established monograph for Over-The-Counter (OTC) antacid agents.
Aluminum Hydroxide functions locally within the gastrointestinal tract, designed to neutralize excess gastric acid without being absorbed systemically into the circulation. Its primary positioning as an OTC agent is for providing fast relief of common gastric discomfort, such as heartburn and acid indigestion.
Composition, Origin, and Available Forms
The active substance, Aluminum Hydroxide, is a chemical compound synthesized commercially from mineral sources, specifically derived from aluminum. The medicine is intended strictly for Oral administration.
The most characteristic form is the Oral Suspension (liquid or gel), which is designed for rapid and uniform dispersion in the stomach. The liquid suspension form generally demonstrates a greater phosphate-binding capacity than the solid forms, such as capsules or chewable tablets. This liquid presentation facilitates immediate contact with the stomach lining, which is essential for prompt acid neutralization.
What is the General Purpose of Aluminum Hydroxide?
The medicine's general purpose is derived from its two distinct physiological actions: acid neutralization and cation binding.
The primary function of acid neutralization is to provide symptomatic relief from discomforts such as heartburn or acid indigestion. Separately, the cation binding property allows the aluminum component to attach to dietary phosphate in the intestine. This mechanism serves to manage the body’s phosphate load, a critical requirement for patients with mineral imbalances stemming from chronic conditions.
Regulatory References

