It can cause jitteriness, increased heart rate, or insomnia.
Standard adult dose is 60mg every 4-6 hours or 120mg extended-release every 12 hours. Do not exceed 240mg in 24 hours. will sudafed help blocked ears
If you’ve ever had a cold, allergies, or sinus pressure, you know the frustrating sensation of muffled hearing or that persistent "underwater" feeling. It’s tempting to reach for a quick fix, leading many to ask: It can cause jitteriness, increased heart rate, or insomnia