Answer
No. Rapid-acting formulations differ in absorption and exposure, so switching must follow the new product's specialist process.
Sources for this answer
- Abstral Sublingual Tablets — Current selected SmPCemc · Summary of Product Characteristics
- PecFent 100 micrograms/spray nasal spray, solution — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.