Wikipedia
Linking: http://en.wikipedia.org/wiki/Penicillamine
Penicillamine is an antirheumatic drug used to treat patients with active rheumatoid arthritis. It also is
classified as a metal binding (chelating) agent used for treating Wilson's disease, a genetic
disease that causes excessive copper to accumulate in the body. The mechanism of
action of penicillamine in rheumatoid arthritis is unknown but it may be related
to reduction of collagen formation. (Collagen is a type of tissue that forms a
part of scar tissue that results from inflammation) and suppression of the
immune system. In patients with rheumatoid arthritis, penicillamine appears to
slow the progression of the disease (specifically deformities of the joints) and
improve function. For this reason it is considered a disease modifying
anti-rheumatic drug (DMARD). Penicillamine binds copper, iron, mercury, lead,
and cystine which then are excreted in the urine, and this mechanism is
important in treating several nonrheumatic diseases including Wilson's disease.
The FDA approved penicillamine in December 1970. (http://www.medicinenet.com/)
D-penicillamine is a degradation product of penicillin. Only the d-isomer is
used because l-isomer causes optic neuritis. It is slowly but adequately
absorbed after oral administration. The drug gets metabolised in the body and is
excreted in the urine and faeces. D-penicillamine is used in severe and active rheumatoid arthritis, it is used
mainly as chelating agent in heavy metal poisoning as in lead, mercury and
copper poisoning. It is used in Wilson's disease. (http://www.webhealthcentre.com/)
D-Penicillamine,
usually referred to as penicillamine, (brand name D-Penamine)
is a medicine used to treat rheumatoid arthritis. Occasionally
it is used to treat other rheumatic diseases such as
systemic sclerosis. Penicillamine should not be confused
with the antibiotic penicillin, which is a different
compound. Those who are allergic to penicillin may not
necessarily be sensitive to penicillamine. While penicillamine
can be very effective for some patients, it is used
infrequently today as more effective medicines have
become available. Penicillamine is an immunosuppressive
medicine, which means that it works by reducing the
activity of the immune system. (http://www.rheumatology.org.au/)
Therapeutic
Classification:
- Antidote
- Antirheumatic agent
- Chelating agent
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