title: Evaluation of cytotoxicity of some common ophthalmic drugs.
abstract: The study was aimed at evaluating the in vitro cytotoxicity of some commonly used drugs in ophthalmology. Hydrocortisone sodium succinate, Dexamethasone sodium phosphate, 5-Fluorouracil, Tobramycin and Pilocarpine nitrate are frequently used in various indications involving eye care, and the aim was to test the safety of these in cell culture.
  
  
  
  The in vitro cytotoxicity was carried out on the NIH 3T3 cell line by the Sulforhodamine B (SRB) assay.
  
  
  
  With the exception of 5-Fluorouracil, none of the other drugs demonstrated appreciable cytotoxicity up to high concentrations of 200 µg/ml at 48 hours of drug exposure.
  
  
  
  Hydrocortisone sodium succinate, Dexamethasone sodium phosphate, Tobramycin and Pilocarpine nitrate were confirmed to be non-cytotoxic while 5-Fluorouracil was highly cytotoxic especially at 48 hours at very low concentrations.
authors.affiliation: Department of Ophthalmology, West China Hospital of Sichuan University, Chengdu, Sichuan, China. 13308081182@189.cn.
authors.forename: M
authors.initials: M
authors.lastname: Li
authors.forename: X-M
authors.initials: XM
authors.lastname: Chen
authors.forename: J-J
authors.initials: JJ
authors.lastname: Liu
authors.forename: D-M
authors.initials: DM
authors.lastname: Wang
authors.forename: L
authors.initials: L
authors.lastname: Gan
authors.forename: X
authors.initials: X
authors.lastname: Lv
authors.forename: Y
authors.initials: Y
authors.lastname: Qiao