HELMIN Spag. Oral Drops - Provide Powerful Therapy to Fight Intestinal Parasites. To help patients fight intestinal parasites. Recently developed by PEKANA founder and master pharmacist Dr. Peter Beyersforff, the 50 ml bottles are offered exclusively in the U.S. by BioResource and its sub-distributors. "Parasitic infections, including those caused by worm eggs, can occur due to contaminated food, self-infection or the result or poor hygienic or sanitary conditions," explained Dr. Beyersdorff. "Maintaining a healthy intestinal flora is the best protection against parasites, and use of PEKANA homeopathic-spagyric medications can help promote good gut symbiosis.