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U.S. Department of Health and Human Services


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Reminyl (galantamine hydrobromide) Dear Healthcare Professional Letter Oct 2004

The following information is from Janssen Pharmaceutica Products. Contact the company for a copy of any referenced enclosures.





Dear Healthcare Professional:

Janssen Pharmaceutica Products, L. P. and Johnson & Johnson Pharmaceutical Research & Development, L. L. C. have recently been made aware of several reports of medication errors involving confusion between REMINYL® 1 (galantamine hydrobromide), a drug approved for the treatment of mild to moderate dementia of the Alzheimer’s type, and AMARYL® 2 (glimepiride), a product of Aventis Pharmaceuticals Inc., indicated for the treatment of non-insulin-dependent (Type 2) diabetes mellitus. These reports include instances in which REMINYL was prescribed but AMARYL was incorrectly dispensed and administered instead, leading to various adverse events including severe hypoglycemia and one death.

According to the spontaneous reports submitted to the FDA and the United States Pharmacopoeia, prescriptions have been incorrectly written, interpreted, labeled, and/ or filled due to the similarity in names between REMINYL and AMARYL®. These two products have an overlapping strength (4 mg) and an overlapping dosage form (tablets). In addition, both products have generic names (galantamine vs glimepiride) that might lead to their storage in close proximity.

It is important to note that REMINYL has a starting dosage of 4 mg TWICE a day, whereas AMARYL® is initially dosed at 1-2 mg ONCE a day, with a maximum starting dosage of 2 mg.

REMINYL is supplied for oral administration as 4 mg (round, off-white), 8 mg (round, pink), and 12 mg (round, orange-brown) tablets. REMINYL tablets are imprinted “JANSSEN” on one side, and “G” and the strength “4”, “8”, or “12” on the other side.

AMARYL® is supplied for oral administration as 1 mg (pink, flat-faced, oblong with notched sides at double bisect and imprinted with “AMARYL”), 2 mg (green, flat-faced, oblong with notched sides at double bisect and imprinted with “AMARYL”) and 4 mg (blue, flat faced, oblong with notched sides at double bisect, imprinted with “AMARYL”).

[tablet photos]

We recognize that medication errors have multiple system causes and the physician’s role in avoiding such errors is pivotal. Your assistance is requested in clearly communicating oral and written prescriptions for these two products to help avoid future medication errors. If you become aware of any medication errors involving REMINYL, report them immediately to us at 1-800-JANSSEN or 1-800-526-7736, and if AMARYL is involved, to Aventis Pharmaceuticals at 1-800-633-1610. Medication errors should also be reported to the USP Medication Errors Reporting Program in cooperation with the Institute for Safe Medication Practices ( 1-800-23ERROR; 1-800-FAIL-SAF), or FDA’s MedWatch Adverse Event Reporting Program (1-800-FDA-1088).

We offer the following suggestions to help decrease the potential for future errors:

  • For phone prescriptions, spell out the name of the medication
  • For written prescriptions, print the name of the medication clearly

Thank you for your attention to this matter.


Ramy Mahmoud, MD, MPH
Vice-President, CNS
Janssen Medical Affairs, LLC


1 REMINYL Prescribing Information, Janssen Pharmaceutica Products, L. P. March 2003

2 AMARYL Prescribing Information, Aventis Pharmaceuticals Inc. August 2004