Guaifen-C and diet pills

My doctor prescribed this medication for a sinus infection. Usually have been prescribed a Z-pack for this by my regular doctor. I took this medication right after returning home about middle afternoon. I was awake untill 5 am went to work and took again in the AM, with my regular morning breakfast of coffee and toast, didn't eat much during the rest of the day, not hungry felt like I was on diet pills (heart palpations, etc. ).
My headache which usually accompanys sinus infections got worse so I went to bed early because it was really a very bad headache and at 5AM I woke up in a cold sweat and started throwing up. After feeling the same at 8AM Since it was Saturday I opt to go to Urgent Care. Was seen by doctor by 9:30AM. By this time I was still throwing up, horrible headach, and cold sweats. My blood preasure was at all time hight 160 over 100. Needless to say this doctor gave me the Z-Pack and he asked to see me again on Monday morning at which time my blood preasure was back to normal 116 over 80.
I will never knowingly take this medication AGAIN! Please note: 1. I have never had high blood pressure, actually it is usually low. 2. When taking medications I will always drink more water than I normally do to help just to flush out my body, especially when I am taking sinus medications as they usually "dry me out".

Don't read all of these posts. I personally have not had much of a problem, let me explain...

I think most of these people exaggerate, and their problems are caused by dehydration. When taking this medication you have to drink excess water, not just the daily amount you should already be drinking. The people with serious problems probably drink lots of coffee or soda with caffeine instead of water. This product basically has ephedrine in it, so it increases your heart rate, and caffeine will compound that problem and the dehydration as caffeine has diuretic effects. A lot of these people probably also took a diet pill and didnt tell their doctor, and that will increase the problems substantially, especially if people are also on a low calorie intake diet. It also constricts blood ways, so if you smoke or you have heavily clogged blood ways already you will most likely have a problem.

You can expect to lose weight though, how about that as a positive side effect.

I would bet that 90% of the problem people on here did not follow the directions with the medication.

I run a lot so that makes me tired after I have already taken the medication twice, so I have not noticed much sleep loss, but you should take this with breakfast and lunch not with dinner.

When I took this with the antibiotic I would occasionally experience abnormal heart beats, but when I stopped taking the antibiotic that stopped, probably because I wasn't supposed to be exposed to a lot of sun, and I live in SO CAL. Read the warnings on all of your medication and tell your doctor about all of the over the counter stuff you take including diet pills.

My doctor did not inform me this is a psuedo-ephedrine drug. Which means you should NOT consume caffienated products while on the medication. It could increase the side-effect of dizzyness. The psuedo-ephedrine is also the reason you could feel like "your on speed" or the loss of appetite. Ephedrine isn't for everyone. If you experience those feelings it's best to take a half dose or to stop taking it all. Ephedrine/ephedra are used in many diet pills- most of which are being pulled from the shelves.

When used correctly; modifed to fit an individual, Guaifen can work beautifully.