In his FDA warning letter roundup, dietary supplement consultant Asa Waldstein reviews trends around homeopathic products, claims made in YouTube videos, delta-8 THC, and more.
Propylene glycol is a colorless, viscous liquid that does not react with other substances, making it an ideal solvent for syrupy medicines. It is generally sold in two grades: pharmaceutical and industrial.
Samples of syrups from two Indian pharmaceutical companies have been found to contain contaminants. The substances were also found in syrups linked to deaths in other countries.
The FDA has issued warnings to 28 manufacturers of over-the-counter medications and health products this year for failing to test ingredients for toxins linked to global deaths