July 16, 2004

Neurochem to hold conference call and webcast on interim Alzhemed™ results unveiled at 9th International Conference on Alzheimer's Disease and Related Disorders.

- Neurochem Inc. (NASDAQ: NRMX; TSX: NRM) will hold a conference call on Monday, July 19, 2004, at 10:00 A.M., EDT, to discuss the latest interim clinical results of the Phase II open-label extension study on Alzhemed™, the Company's investigational product candidate for the treatment of Alzheimer's Disease. The conference call will be webcast simultaneously.

During the call, Francesco Bellini, Ph.D., Chairman and Chief Executive Officer of Neurochem, and Denis Garceau, Ph.D., Neurochem's Vice President, Drug Development, will summarize and comment on the new clinical results. Francine Gervais, Ph.D., Neurochem's Vice President, Research and Development, will also be available following the presentations for questions from callers.

Results will be presented on July 18th at the 9th International Conference on Alzheimer's Disease and Related Disorders organized by the Alzheimer's Association in Philadelphia, the largest gathering of Alzheimer's researchers in history attended by more than 4,500 scientists from around the world.

Live Web Conference

To participate in the conference call and webcast, please dial 1 877-888-4210 approximately 10 minutes prior to the start of the call AND access Neurochem's website at www.neurochem.com. The dial-in number will allow participants to listen and ask questions, while the webcast will provide a visual presentation.

A replay of the web cast will be available on Neurochem's website at 12:00 P.M., EDT. This webcast will include the conference call and the visual presentation. For those wanting to access the audio portion only of the conference call, a replay will be available from 12:00 P.M. EDT. Interested parties can dial 1-866 816-8948 or 416 695-9675, access code: 8490#. The replay will be available for 72 hours.

About Neurochem

Neurochem is focused on the development and commercialization of innovative therapeutics for neurological disorders. The Company's pipeline of proprietary, disease-modifying, oral products addresses critical unmet medical needs. Fibrillex™, designated as an orphan drug and as a Fast Track Product candidate, is also part of a Continuous Marketing Applications Pilot 2 program and is currently in a Phase II/III clinical trial for the treatment of AA Amyloidosis. Alzhemed™, for the treatment of Alzheimer's disease, is in a Phase III clinical trial and Cerebril™, for the prevention of Hemorrhagic Stroke caused by Cerebral Amyloid Angiopathy, has completed a Phase II clinical trial.

Certain statements contained in this news release, other than statements of fact that are independently verifiable at the date hereof, may constitute forward-looking statements. Such statements, based as they are on the current expectations of management, inherently involve numerous risks and uncertainties, known and unknown, many of which are beyond Neurochem's control. Such risks include but are not limited to: 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 as well as other risks included in public filings of Neurochem. Consequently, actual future results may differ materially from the anticipated results expressed in the forward-looking statements. The reader should not place undue reliance on the forward-looking statements included in this news release. These statements speak only as of the date made and Neurochem is under no obligation and disavows any intention to update or revise such statements as a result of any event, circumstances or otherwise.

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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