Generic Xopenex

You can buy Xopenex (levalbuterol) in brand-name and generic form. The generic versions come in four strengths and are made by a number of manufacturers, such as Prasco Laboratories. All of the generic forms of Xopenex have been assigned an "AN" rating by the FDA. This means they are considered equivalent to the brand-name version; however, they are allowed to contain different inactive ingredients.

Generic Xopenex: An Overview

Xopenex® (levalbuterol hydrochloride) is a prescription medication used to treat asthma and other similar respiratory problems. It is part of a class of asthma drugs known as beta-adrenergic receptor agonists, or beta agonists for short.
Brand-name Xopenex is manufactured by Sunovion Pharmaceuticals. However, generic versions are also available.

Generic Xopenex Strengths

Generic Xopenex is available in four strengths:
  • Levalbuterol 0.31 mg/3 mL vials
  • Levalbuterol 0.63 mg/3 mL vials
  • Levalbuterol 1.25 mg/3 mL vials
  • Levalbuterol concentrate 1.25 mg/0.5 mL vials (which must be diluted before use).
Generic Xopenex is made by various manufacturers, such as:
  • Mylan Pharmaceuticals, Inc.
  • Prasco Laboratories
  • Watson Laboratories, Inc.

Is Generic Levalbuterol as Good as Xopenex?

All generic medications must undergo certain tests to compare them to brand-name medications. The U.S. Food and Drug Administration (FDA) then looks at these tests to decide if the generics are equivalent to the brand-name medications and assigns a rating to each one.
An "AN" rating means that the FDA has determined that a generic medication is equivalent to a brand-name medication. All of the generic versions of levalbuterol currently available have an "AN" rating, meaning they should be equivalent to Xopenex.
However, generic medications are allowed to have different inactive ingredients than the brand-name medication. This might include fillers, dyes, or other ingredients that may cause problems for people with allergies or sensitivities. 
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