Guaifenex and sinus infection

My son is 25 and he started takng Guaifenex back in June for sinus infection. Since then he has been to emergency room 3 times and in the hospital twice--complains of pressure in upper jaw, chest tightness, and has chilling sensation along spine. Also his left side feels funny and he has been diagnosed with panic attacks and the doctor wants him to have a phsyc examination--he's not crazy just wants these wierd symptoms to go away. Has anyone had any long term affects after taking this drug?

I've got sinusitis (sinus infection) and was prescribed Guaifenex PSE 120 TAB Ethex. Taken twice daily. So far I've had 3 doses, got to take one in a few hours soon. Every time I take it, anywhere within 15 (maybe 30) minutes - a few hours, I get severe abdominal cramping, and sometimes bloating. I thought maybe it's just that I'm not eating enough and there's air pockets in my system that's causing the cramping. But it only happens when I take the meds...
Is abdominal cramping (like a bad menstrual cramp) normal???
Plus I do feel like it is harder to sleep, and at times have felt feverish, or like I'm just burning up, that the room is so hot.
Anyone experiencing any "sexual" side-effects from the drug?

I have noticed tingling in my fingers. I also wake up during the night every few hours. But it makes me not want to eat and that is great! It has cleared up my congestion and gives me energy. I will take it again the next time I have a sinus infection. The side effects are minimal and easy to tolerate for myself. Don't know what is happening to everyone else.

Was prescribed Guaifenex PSE 600/120 for an sinus infection. Took my first pill last night at 9:00pm before bed and let me say I have yet to sleep. It's now 11:45am and I am still not tired. Will never take these again. Help...

My doctor prescribed me Guaifenex for a sinus infection along with trimethobenx for upset stomach along with advair ( a powder inhaler) never knew why she prescribed all of this medication just for a sinus infection. I stopped taken the advair an experienced shortness of breath, bad headaches, but one things for sure I only eat one meal a day. Oh by the way I can't sleep at night and extremely tired in the morning to start the cycle all over again the next day. It leave a very nasty taste in my mouth i'm constantly brushing my tongue it leave a coating on it. The drainage I can never cough up and my ears has been clogged since I started these meds. I take tylenol pm just to sleep. Something to think about before taking this medication. You get it for a sinus infection but end up with a headache.

I took this with a sinus infection and fluid on my ears - second time to take the Guaifenex for the same illness. It said very clearly on the bottle to take with a full glass of water and believe me, if you do not take with a full glass of water, the meds don't work properly at loosening up the mucos and you will get a headache. Lots of headaches are caused by dehydration anyway. But I think many of you who have complained of a headache would find if you drank more water when taking the pills, it would go away. It is also a little harder to fall asleep but no harder than it is when taking OTC Sudafed. So I would recommend the Guaifenex - it works great at breaking up the junk that causes the infections.

taking this drug for sinus infection...i don't like it. wondering if anyone is having trouble going to the bathroom......both ways

I would gladly deal with my sinus infection than with the side effects of this drug: rapid heart rate, chest heaviness, dizziness, and rash. I stopped taking the drug two days ago but the symptoms still persist. Anyone out there with a similar story?

I was prescribed this in conjunction with Biaxin for a sinus infection. I have more pain in my head, headaches, light headedness, nausea, and a very lathargic feeling. I also have extremely dry nasal passages. After reading the previous entries I am going to stop taking it. It can't hurt.