F L Pill — BLUE;ORANGE CAPSULE, 19mm — Memantine

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Imprint	F / L
Colour	BLUE;ORANGE
Shape	CAPSULE
Size	19
Strength	memantine hydrochloride 21 mg;donepezil hydrochloride 10 mg
Dosage form	Capsule
Manufacturer	Allergan, Inc.
NDC	0456-1221
Schedule	—
Availability	Prescription only
Ingredients	memantine hydrochloride[memantine];donepezil hydrochloride[donepezil]

What does this imprint mean?

The imprint "F L" is a code stamped or printed on the tablet or capsule by the manufacturer, used to identify the drug, its strength and the maker.

Active ingredient

Memantine

Uses and warnings

No boxed warning. The label's key caution is that "conditions that raise urine pH may decrease the urinary elimination of memantine, resulting in increased plasma levels" (e.g., carbonic anhydrase inhibitors, sodium bicarbonate), requiring careful monitoring. It also notes that "combined use of memantine hydrochloride with other NMDA antagonists...has not been systematically evaluated and such use should be approached with caution."

Indicated for the treatment of moderate to severe dementia of the Alzheimer's type.

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How to identify this pill

• Check the imprint matches exactly: "F L".
• Confirm the colour (BLUE;ORANGE) and shape (CAPSULE).
• Compare the size (19) against a ruler if possible.
• When in doubt, confirm with a pharmacist before taking any medication.

F L Pill — BLUE;ORANGE CAPSULE, 19mm — Memantine

What does this imprint mean?

Active ingredient

Uses and warnings

How to identify this pill

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Official references