Ephedrine HCl Powder Dosage Dosage of Ephedrine HCl Powder The appropriate dosage of ephedrine HCl powder depends on the specific use case and the individual patient. Below are general dosage guidelines: For Nasal Congestion and Bronchial Asthma: Adults and Children Over 12 Years: Standard Dosage: 12.5 to 25 mg orally every 4 to 6 hours […]