Each ml contains 10mg Atropine sulfate, 0.5mg Benzalkonium chloride as a preservative, 5mg Hypromellose (2910), Dibasic sodium phosphate, Edetate disodium, Monobasic sodium phosphate, Hydrochloric acid and/or Sodium hydroxide may be added to adjust pH (3.5 to 6.0) and purified water USP.