How long does it take for 25mg of promethazine to kick in?
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3 min read
For most individuals, the clinical effects of oral promethazine are apparent within 20 to 30 minutes of taking a dose. When asking, "How long does it take for 25mg of promethazine to kick in?", it's important to understand that while the initial sedative and antiemetic effects are quick, several personal and environmental factors can influence the exact timing.