Confidence votes 76. It depends on the temperature of the refrigerator and how well the pack is resealed. Three to ten days depending on the environment.
Pediatric Patients: Klonopin is administered orally. In order to minimize drowsiness, the initial dose for infants and children (up to 10 years of age or 30 kg of body weight) should be between 0.01 and 0.03 mg/kg/day but not to exceed 0.05 mg/kg/day given in two or three divided doses.
There is no normal dose of Klonopin, only a range of acceptable dosages, based on a person's ailment and response to therapy. It varies from <1mg/day to a maximum of 20 mg/day. This (by your doctor), is to be determined by your condition and response to therapy. Adjustments are common until the right dose is found.