I have taken Phenergan for 3 nights but first night only 10mg how long does it take to work.
Phenergan : I have taken Phenergan for 3 nights... - IBS Network
Phenergan
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It only took 2 - 3 doses to work for me. Double the dose if you don't get any results.
Been trying for 4 nights now but sadly no improvement yet, and makes me feel very drowsy for a few hours the next day.
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