What Are The Side Effects Of Celestamine?

Hi dr, Celestimine is the only drug I have ever used that cures my allergies. I have never feel so healthy since using them. I was sick with sinus infections 8 times last year. Should one not weigh up the pro s and con s of celestamine. No other drug or anthistamine/injections have ever helped. To me celestimine is a wonderdrug. But so many negative comments regarding this drug? Please advise.