title: A comparative study to evaluate the efficacy and safety of combination topical preparations in acne vulgaris.
abstract: BACKGROUND
  The combinations of topical keratolytics with anti-microbials and topical retinoids with antimicrobials are commonly prescribed in the treatment of acne.
  
  
  OBJECTIVE
  The present study was undertaken with the aim of comparing the efficacy and safety of topical benzoyl peroxide and clindamycin versus topical benzoyl peroxide and nadifloxacin versus topical tretinoin and clindamycin in patients of acne vulgaris.
  
  
  METHODS
  100 patients between 15 and 35 years having ≥2 and ≤30 inflammatory and/or noninflammatory lesions with Investigator's Global Assessment (IGA) score 2/3 were randomly divided into 3 groups. Group A was prescribed benzoyl peroxide 2.5% gel and clindamycin 1% gel, Group B was prescribed benzoyl peroxide 2.5% gel and nadifloxacin 1% cream and Group C was prescribed tretinoin 0.025% and clindamycin 1% gel. Total number of lesions and adverse effects during the treatment were assessed at 0, 4, 8, 12 weeks with IGA score.
  
  
  RESULTS
  There was statistically significant reduction in total number of lesions with better improvement in Group A. Adverse drug reactions during the study showed a better safety profile of Group B which is found to be statistically significant also.
  
  
  CONCLUSIONS
  These findings confirm that Group A is more efficacious and Group B is safest among the other two groups.
authors.affiliation: Department of Pharmacology, Government Medical College, Patiala, Punjab, India.
authors.forename: Jasleen
authors.initials: J
authors.lastname: Kaur
authors.affiliation: Department of Pharmacology, Government Medical College, Patiala, Punjab, India.
authors.forename: Vijay K
authors.initials: VK
authors.lastname: Sehgal
authors.affiliation: Department of Pharmacology, Government Medical College, Patiala, Punjab, India.
authors.forename: Anita K
authors.initials: AK
authors.lastname: Gupta
authors.affiliation: Department of Dermatology and Venereal Diseases, Rajindra Hospital, Government Medical College, Patiala, Punjab, India.
authors.forename: Surinder P
authors.initials: SP
authors.lastname: Singh
keywords: Adverse drug reactions; Investigator's Global Assessment score; anti-microbials; keratolytics; retinoids