Has more side effects than Allegra since it has pseudoephedrine in it. The antihistamine (fexofenadine) can cause dizziness, drowsiness, dry eyes/mouth, and constipation. The decongestant (pseudoephedrine) can make your blood pressure higher and can make it harder to sleep.
Food preservatives (or additives) contained in certain foods can trigger headaches. Nitrates and nitrites are additives in: 1  Hot dogs. 2  Ham. 3  Sausage. 4  Bacon. 5  Lunch meats and deli-style meats.6  Pepperoni.7  Other cured or processed meats. 8  Some heart medicines.ood preservatives (or additives) contained in certain foods can trigger headaches. Nitrates and nitrites are additives in: 1  Hot dogs. 2  Ham. 3  Sausage. 4  Bacon. 5  Lunch meats and deli-style meats. 6  Pepperoni. 7  Other cured or processed meats.
Nitrates and nitrites must be used with caution during curing. Both can be considered toxic and for that reason, strict limits on their use have been established. Usually, the amount of added sodium nitrite lies in the range of 50-200 mg/kg and nitrate in the range of 200 to 600 mg /kg.Excessive use of nitrate (too much) and/or nitrites can cause severe oxidation of the meat pigment producing a green pigment. This form of greening of cured meats is referred to as nitrite burn.This product was added to our catalog on Friday 28 July, 2006.xcessive use of nitrate (too much) and/or nitrites can cause severe oxidation of the meat pigment producing a green pigment. This form of greening of cured meats is referred to as nitrite burn. This product was added to our catalog on Friday 28 July, 2006.