Answer
The Pfizer Limited topotecan hydrochloride 4 mg/4 ml concentrate for solution for infusion product contains tartaric acid (E334), hydrochloric acid (E507) and sodium hydroxide (both for pH adjustment), and water for injections.
Sources for this answer
- Topotecan Hospira 4 mg/4 ml concentrate for solution for infusionPfizer Limited · emc · SmPC §6.1 List of excipients · Version 18Document updated
Sources checked