What happens if I overdose on chlorpheniramine/guaifenesin/hydrocodone/PSE?
Seek emergency medical attention if you think you have used too much of this medicine. An overdose of hydrocodone can be fatal. Overdose symptoms may include fast or uneven heart rate, extreme drowsiness, feeling restless or hyperactive, confusion, hallucinations, warmth or redness in your face, cold or clammy skin, blue-colored lips or fingernails, weak or shallow breathing, fainting, or seizure (convulsions).
