I have allergy/sinuses pretty bad. I have tried lots of different over the counter medicines. A while back I grabbed a box of Wal-Phed Maximum Strength at Walgreens. This just did not work for me. It helped relieve my symptoms (runny nose, itchy eyes, sinus pressure) for only about two hours. The active ingredients are- Guaifenesin 200 mg in each Caplet, Phenylephrine HCl 5 mg in each caplet. This is medicine is comparable to Maximum Strength Sudafed PE (which I am sure I have taken at one time or another but do not remember if it helped). I only took 2 doses of this medicine and gave the rest to my mom. She never said if they helped her or not. It was not that this medicine did not work at all it was just that it did not work that long. I also had to take a Tylenol for my headache. The capsules are big but at least they are gel coated. Maybe I am just super cheap but I have paying around $6 for medicine that just does not bring me much relief. I did not notice any side effects while taking this medicine.