Bonzo...I had emailed the makers of this product...Boiron. And I was told that taking this alternative has no side effects. When you get the product, you can usually pick up a brochure with it as well and it also says that these products will not hurt you. Its Silicea 6C and Hepar Sulphuris 6C. If you would like to try this, you should call around your health food stores, chances are they do sell it.