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Olopatadine

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OLPATADINE

SEE FOR SYNTHESIS http://www.allfordrugs.com/2016/08/10/olopatadine/

Olopatadine hydrochloride is an antihistamine (as well as anticholinergic and mast cell stabilizer), sold as a prescription eye dropmanufactured by Alcon in one of three strengths: 0.7% solution or Pazeo in the US, 0.2% solution or Pataday (also called Patanol Sin some countries), and 0.1% or Patanol (also called Opatanol in some countries). It is used to treat itching associated with allergicconjunctivitis (eye allergies). A decongestant nasal spray formulation is sold as Patanase, which was approved by the FDA on April 15, 2008.[1] It is also available as an oral tablet in Japan under the tradename Allelock, manufactured by Kyowa Hakko Kogyo.[2]

It should not be used to treat irritation caused by contact lenses. The usual dose for Patanol is 1 drop in each affected eye 2 times per day, with 6 to 8 hours between doses. Both Pazeo and Pataday are dosed 1 drop in each eye daily.

There is potential for Olopatadine as a treatment modality for steroid rebound (red skin syndrome).[3]

Olopatadine was developed by Kyowa Hakko Kogyo.[4]

Side Effects

Some known side effects include headache (7% of occurrence), eye burning and/or stinging (5%), blurred vision, dry eyes, foreign body sensation, hyperemia, keratitis, eyelid edema, pruritus, asthenia, sore throat (pharyngitis), rhinitis, sinusitis, and taste perversion.

Synthesis

Olopatadine synthesis:[5]

References

  1.  Drugs.com, Alcon’s Patanase Nasal Spray Approved by FDA for Treatment of Nasal Allergy Symptoms
  2.  Kyowa Hakko Kogyo Co., Ltd. (2007). “ALLELOCK Tablets 2.5 & ALLELOCK Tablets 5 (English)” (PDF). Retrieved2008-08-10.
  3. Jump up^ Tamura T; Matsubara M; Hasegawa K; Ohmori K; Karasawa A. (2005). “Olopatadine hydrochloride suppresses the rebound phenomenon after discontinuation of treatment with a topical steroid in mice with chronic contact hypersensitivity.”.
  4. Jump up^ Kyowa Hakko Kogyo Co., Ltd. (2002). “Company History”.Company Information. Kyowa Hakko Kogyo Co., Ltd. Retrieved16 September 2010.
  5. Jump up^ Ueno, K.; Kubo, S.; Tagawa, H.; Yoshioka, T.; Tsukada, W.; Tsubokawa, M.; Kojima, H.; Kasahara, A. (1976). “6,11-Dihydro-11-oxodibenz[b,e]oxepinacetic acids with potent antiinflammatory activity”. Journal of Medicinal Chemistry. 19 (7): 941.doi:10.1021/jm00229a017.

External links

 

 

Olopatadine
Olopatadine.svg
Systematic (IUPAC) name
{(11Z)-11-[3-(dimethylamino)propylidene]-6,11-
dihydrodibenzo[b,e]oxepin-2-yl}acetic acid
Clinical data
Trade names Patanol and others
AHFS/Drugs.com Monograph
MedlinePlus a602025
Pregnancy
category
  • C
Routes of
administration
Ophthalmic, intranasal, oral
Pharmacokinetic data
Biological half-life 3 hours
Identifiers
CAS Number 113806-05-6 Yes
ATC code S01GX09 (WHO)R01AC08 (WHO)
PubChem CID 5281071
DrugBank DB00768 Yes
ChemSpider 4444528 Yes
UNII D27V6190PM Yes
KEGG D08293 Yes
ChEMBL CHEMBL1189432 
Chemical data
Formula C21H23NO3
Molar mass 337.412 g/mol

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DR ANTHONY CRASTO

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DR ANTHONY MELVIN CRASTO Ph.D

DR ANTHONY MELVIN CRASTO Ph.D

DR ANTHONY MELVIN CRASTO, Born in Mumbai in 1964 and graduated from Mumbai University, Completed his Ph.D from ICT, 1991,Matunga, Mumbai, India, in Organic Chemistry, The thesis topic was Synthesis of Novel Pyrethroid Analogues, Currently he is working with GLENMARK PHARMACEUTICALS LTD, Research Centre as Principal Scientist, Process Research (bulk actives) at Mahape, Navi Mumbai, India. Total Industry exp 29 plus yrs, Prior to joining Glenmark, he has worked with major multinationals like Hoechst Marion Roussel, now Sanofi, Searle India Ltd, now RPG lifesciences, etc. He has worked with notable scientists like Dr K Nagarajan, Dr Ralph Stapel, Prof S Seshadri etc, He did custom synthesis for major multinationals in his career like BASF, Novartis, Sanofi, etc., He has worked in Discovery, Natural products, Bulk drugs, Generics, Intermediates, Fine chemicals, Neutraceuticals, GMP, Scaleups, etc, he is now helping millions, has 9 million plus hits on Google on all Organic chemistry websites. His friends call him worlddrugtracker. His New Drug Approvals, Green Chemistry International, All about drugs, Eurekamoments, Organic spectroscopy international, etc in organic chemistry are some most read blogs He has hands on experience in initiation and developing novel routes for drug molecules and implementation them on commercial scale over a 29 year tenure till date Aug 2016, Around 30 plus products in his career. He has good knowledge of IPM, GMP, Regulatory aspects, he has several International patents published worldwide . He has good proficiency in Technology transfer, Spectroscopy, Stereochemistry, Synthesis, Polymorphism etc., He suffered a paralytic stroke/ Acute Transverse mylitis in Dec 2007 and is 90 %Paralysed, He is bound to a wheelchair, this seems to have injected feul in him to help chemists all around the world, he is more active than before and is pushing boundaries, He has 9 million plus hits on Google, 2.5 lakh plus connections on all networking sites, 25 Lakh plus views on dozen plus blogs, He makes himself available to all, contact him on +91 9323115463, email amcrasto@gmail.com, Twitter, @amcrasto , He lives and will die for his family, 90% paralysis cannot kill his soul., Notably he has 13 lakh plus views on New Drug Approvals Blog in 212 countries......https://newdrugapprovals.wordpress.com/ , He appreciates the help he gets from one and all, Friends, Family, Glenmark, Readers, Wellwishers, Doctors, Drug authorities, His Contacts, Physiotherapist, etc

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