title: [Comparison of olopatadin and ketotifen in the treatment of allergic conjunctivitis].
abstract: OBJECTIVE
  To compare the efficacy of olopatadine 0.1 % and ketotifen 0.025 % ophthalmic solutions in the treatment of allergic conjunctivitis.
  
  
  METHODS
  Forty patients with allergic conjunctivitis were included in the study, they were randomized in two groups: G-I (n = 20) olopatadine 0.1 % and G-II (n = 20) ketotifen 0.025 %, both receiving one drop every 12 hours. We evaluated itching, burning, tearing, redness and chemosis previously and 30 minutes, one, two and four week after.
  
  
  RESULTS
  Age G-I was 19.7 +/- 6.7 years; G-II, 21.05 +/- 8.3 years. When evaluating itching, olopatadine had a significant improvement at 30 minutes and after one week (p < 0.05). In the following weeks, the results were similar in both groups. Olopatadine showed significant improvement in burning at 30 minutes, one and two week (p < 0.05). Tearing significantly decreased at 30 minutes with olopatadine (p < 0.05). There was no difference in redness or chemosis improvement in both groups.
  
  
  CONCLUSIONS
  In this study, olopatadine 0.1 % was more effective than topical ketotifen 0.025 % in improving itching, tearing and burning in allergic conjunctivitis patients.
authors.affiliation: Servicio de Córnea y Cirugía Refractiva, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Distrito Federal, México. massielvr@hotmail.com
authors.forename: Massiel Elena
authors.initials: ME
authors.lastname: Varguez-Rodríguez
authors.forename: Adriana
authors.initials: A
authors.lastname: Hernández-López
authors.forename: Rocío de Los Angeles
authors.initials: Rde L
authors.lastname: Gómez-Dávila
mesh_terms: D018926:Anti-Allergic Agents / Q000627:therapeutic use*; D003233:Conjunctivitis, Allergic / Q000188:drug therapy*; D003990:Dibenzoxepins / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D007665:Ketotifen / Q000627:therapeutic use*; D008297:Male; D000069605:Olopatadine Hydrochloride; D055815:Young Adult
chemical_list: D018926:Anti-Allergic Agents; D003990:Dibenzoxepins; D000069605:Olopatadine Hydrochloride; D007665:Ketotifen