February 19, 2002

Neurochem receives U.S. patent for amyloid program.

Neurochem Inc. (TSX : NRM) has been issued a U.S. patent relating to the Company's industry-leading amyloid technology program. The patent, No. 6,329,356, covers the use of phosphonocarboxylate compounds in order to inhibit the deposition of toxic amyloid fibrils that cause amyloidosis. Currently, Neurochem has three products in clinical development that use this patented technology to treat the amyloid fibril formation found in Alzheimer's Disease, Secondary Amyloidosis and Hemorrhagic Stroke due to Cerebral Amyloid Angiopathy. The patent was issued to Neurochem's researchers and to collaborators at Queen's University in Kingston, Canada.

"The receipt of this U.S. patent not only provides strong protection for our core amyloid technology platform based on glycosaminoglycan (or GAG) mimetics, but also reinforces our leadership position in this area," said Dr. Louis R. Lamontagne, President and CEO of Neurochem. "We continue to strategically fortify our intellectual property portfolio on all fronts with 12 patents currently issued and over a hundred active patent applications," he added.

About Amyloidosis and Related Disorders

Amyloidosis is a diverse group of disorders characterized by extracelluar tissue deposits of amyloid fibrils. Individual amyloid fibrils can build up as a result of an association with other proteins, including the complex carbohydrates known as sulphated glycosaminoglycans (GAGs). The deposits form a solid, highly toxic mass, which limits cellular functioning or even kills the cells upon which they accumulate. Neurochem's innovative therapeutic approach to amyloid-related diseases is based on preventing and stopping the deposition of amyloid fibrils and eliminating the amyloid fibrils associated toxicity. Amyloid deposits within the brain or in the blood vessels are associated with the development of Alzheimer's Disease and Hemorrhagic Stroke respectively. The amyloid deposits found in Secondary Amyloidosis are associated with certain inflammatory conditions including rheumatoid arthritis and Crohn's Disease.

About Neurochem

Neurochem is an industry leader in the development of therapeutic drugs and diagnostic tools for central nervous system and amyloid-related diseases associated with aging. The Company has built a strong product pipeline by developing a novel, proprietary series of compounds that inhibit the formation, deposition and toxic effects of amyloid fibrils within the body. Neurochem's therapeutic programs target Alzheimer's Disease, Epilepsy, Systemic Amyloidosis, Diabetes Type II and Hemorrhagic Stroke (due to Cerebral Amyloid Angiopathy). Neurochem is using a multi-pronged approach towards the development of pharmaceuticals for Alzheimer's Disease, including glycosaminoglycans (GAGs) mimetics, a vaccine, an anti-inflammatory and a neuroprotective approach as well as the creation of a diagnostic imaging tool. The Company has advanced to date three drug candidates to clinical trials: Alzhemed™, for the treatment of Alzheimer's Disease, Fibrillex™, for the orphan disease Secondary Amyloidosis, and Cerebril™, for Hemorrhagic Stroke. At present, the Company employs over 70 people and is located in Saint-Laurent, Canada (www.neurochem.com).

All of the statements contained in this news release, other than statements of fact which are independently verifiable at the date hereof, are forward-looking statements. Such statements, based as they are on the current expectations of management, inherently involve numerous risks and uncertainties, known and unknown. Some examples of known risks are: the impact of general economic conditions, general conditions in the pharmaceutical industry, changes in the regulatory environment in the jurisdictions in which Neurochem does business, stock market volatility, fluctuations in costs, and changes to the competitive environment due to consolidation or otherwise. Consequently, actual future results may differ materially from the anticipated results expressed in the forward-looking statements.

For further Information, please contact:
Dr. Lise Hébert
Vice President, Corporate Communications
lhebert@neurochem.com

275 Armand-Frappier
Laval (Quebec)
H7V 4A7
Tel: (450) 680-4500
Fax: (450) 680-4501

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