EBIXA TABLET

Quốc gia: Canada

Ngôn ngữ: Tiếng Anh

Nguồn: Health Canada

Thành phần hoạt chất:

MEMANTINE HYDROCHLORIDE

Sẵn có từ:

LUNDBECK CANADA INC

Mã ATC:

N06DX01

INN (Tên quốc tế):

MEMANTINE

Liều dùng:

10MG

Dạng dược phẩm:

TABLET

Thành phần:

MEMANTINE HYDROCHLORIDE 10MG

Tuyến hành chính:

ORAL

Các đơn vị trong gói:

30

Loại thuốc theo toa:

Prescription

Khu trị liệu:

MISCELLANEOUS CENTRAL NERVOUS SYSTEM AGENTS

Tóm tắt sản phẩm:

Active ingredient group (AIG) number: 0150423001; AHFS:

Tình trạng ủy quyền:

APPROVED

Ngày ủy quyền:

2004-12-08

Đặc tính sản phẩm

PRODUCT MONOGRAPH
PR
Ebixa
®
Memantine Hydrochloride Tablets 10 mg
N-methyl-D-aspartate (NMDA) receptor antagonist
Lundbeck Canada Inc.
Date of revision:
1000 De La Gauchetière Street West May 14, 2015
Suite 500
Montreal (Quebec), Canada
H3B 4W5
Control No. 181785
- 1 -
NAME OF DRUG
PR
Ebixa
®
Memantine Hydrochloride Tablets 10 mg
THERAPEUTIC CLASSIFICATION
N-methyl-D-aspartate (NMDA) receptor antagonist
A
CTION AND
C
LINICAL
P
HARMACOLOGY
Persistent activation of the central nervous system
N-methyl-D-aspartate (NMDA) receptors by
the
excitatory
amino
acid
glutamate
has
been
hypothesized
to
contribute
to
the
symptomatology of Alzheimer’s disease. Memantine is postulated to
exert its therapeutic effect
through its action as a low to moderate affinity uncompetitive (open
channel) NMDA receptor
antagonist, which binds preferentially to the NMDA receptor-operated
cation channels. It
blocks the effects of pathologically elevated sustained levels of
glutamate that may lead to
neuronal dysfunction. There is no clinical evidence that memantine
prevents or slows
neurodegeneration or alters the course of the underlying dementing
process in patients with
Alzheimer’s disease.
Memantine exhibits low to negligible
affinity for other
receptors
(GABA, benzodiazepine, dopamine, adrenergic, noradrenergic, histamine
and glycine) or
voltage-dependent Ca
2+
, Na
+
or K
+
channels. In addition, it does not directly affect the
acetylcholine
receptor
or
cholinergic
transmission,
which
have
been
implicated
in
the
cholinomimetic side effects (e.g., increased gastric acid secretion,
nausea and vomiting) seen
with acetylcholinesterase inhibitors. Memantine showed antagonist
effects at the 5HT
3
receptor
with a potency similar to that for the NMDA receptor.
- 2 -
In vitro studies have shown that memantine does not affect the
reversible inhibition of
acetylcholinesterase by donepezil or galantamine.
P
HARMACOKINETICS
A
BSORPTION
Orally administered memantine is completely absorbed. Oral
bioavailability is almost 100%.
Time to maximum p