Answer
Phenobarbital Colonis 50 mg/5 ml Oral Suspension requires no special temperature storage conditions and should be stored in the original package to protect it from light.
Sources for this answer
- Phenobarbital Colonis 50 mg/5 ml Oral SuspensionColonis Pharma Ltd · emc · SmPC §6.4 Special precautions for storage · Version 1Document updated
Sources checked