Answer
No. They are different salts containing different proportions of quinine base, so substitutions require professional checking.
Sources for this answer
- Quinine Bisulfate Tablets BP 300mg — Current selected SmPCemc · Summary of Product Characteristics
- UK GovernmentUK Government · Reputable Web
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.