In the article, FDA: Toxic Belladonna In Homeopathic Teething Product, the FDA found that Hyland’s homeopathic teething products had belladonna, which is a toxic chemical, a level far exceeding the amount claimed on the label and asked the Standard Homeopathic Company in Los Angeles to recall its product.

What design controls would this company have to revisit so that the FDA will give them approval? What can they improve their medicine?

Reference: http://www.forbes.com/sites/brucelee/2017/01/28/fda-toxic-belladonna-in-homeopathic-teething-products/#1e916990a586