Answer
Tablets prevent or relieve asthma-related bronchospasm. Injections reverse low blood pressure caused by spinal or epidural anaesthesia.
Sources for this answer
- Ephedrine Hydrochloride 30mg Tablets — Current selected SmPCemc · Summary of Product Characteristics
- Ephedrine Hydrochloride 30 mg/ml Solution for Injection — 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.