Effervescent enteric coated l-dopa formulation and method of using the same
CA 1047928 A · Owner: Interx Research Corporation · Inventors: Nitanai, Takashi; Sasahara, Kunihiro; Nishimura, Kenji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Therapeutic levels of L-DOPA are achieved by orally administering a pharmaceutical effervescent-enteric coated tablet comprising:, (a) a member selected from the group consisting of L-DOPA or a derivative thereof capable of enzymatically cleaving and reverting to L-DOPA in vivo, (b) a non-toxic pharmaceutically acceptable inert diluent (c) a non-toxic pharmaceutically acceptable carbon dioxide releasing agent, (d) a non-toxic pharmaceutically acceptable effervescing agent, and, (e) a non-toxic pharmaceutically acceptable enteric coating. This composition is extremely useful in the treatment of Parkinsonism. When administered to warm-blooded animals (e.g. humans superior therapeutic blood …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted February 6, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 6, 1996.
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Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.