This registry is a place to share positive or negative side effects of using Guaifen-C. If you directly experienced a side effect while using Guaifen-C, then we encourage you to enter it here. Please note that entries here are the experiences of individual users, and in no way means that you or anyone else will experience the same side effect, since the same medication affects people in different ways. Please always contact your physician.
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September 23th
2004
5:02 AM
I was prescribed Guaifen for nasal congestion along with Leviquin for pneumonia. I was told Guaifen might keep me up at night, so I started with just 1 tablet/day instead of 2 and took it twice a day on the weekend. Glad I did as the 1 did keep me awake as well as seem to make my mind race and gave me more dreams/nightmares than usual. On the medication, I wasn't tired but a person needs 6-8 hours of sleep every night, NOT 2 hours. Next time, I will read the side effects before I get my script filled, and call the dr or pharmacist if need be to discuss it further.
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