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21 EFF Pill - white round

Pill with imprint 21 EFF is White, Round and has been identified as Methazolamide 25 mg. It is supplied by Barr Laboratories, Inc.

Methazolamide is used in the treatment of Glaucoma and belongs to the drug class carbonic anhydrase inhibitors. Risk cannot be ruled out during pregnancy. Methazolamide 25 mg is not a controlled substance under the Controlled Substances Act (CSA).

Images for 21 EFF

Methazolamide 25 mg 21 EFF
Methazolamide 25 mg 21 EFF
Methazolamide 25 mg 21 EFF


21 EFF
25 mg
Prescription only
Drug Class
Carbonic anhydrase inhibitors
Pregnancy Category
C - Risk cannot be ruled out
CSA Schedule
Not a controlled drug
Labeler / Supplier
Barr Laboratories, Inc.
National Drug Code (NDC)
51285-0968 (Discontinued)

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Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.