Hi- We've been teating our hen Olympia with Pen-G (~ 1/2 cc daily for 5 days). The bottle is labeled for cows, swine etc and states a 48-hr withdrawal for milk and 10 days for slaughter. I'm concerned about how long we should not eat the eggs, though. I did find this OLD web page (1998) that states: Generic Name: Procaine G Penicillin Premix Trade Name: Procaine G Penicillin Type A Medicated Article Marketing Status: Over the Counter (OTC) Effect of Supplement: This supplemental application provides for compliance with theconclusions of the National Academy of Science/National Research Council(NAS/NRC) evaluation of penicillin-containing Type A MedicatedArticles. II. INDICATIONS FOR USE See below III. DOSAGE: A. DOSAGE FORM Type A Medicated Article B. ROUTE OF ADMINISTRATION Oral in Medicated Type C Feeds C. RECOMMENDED DOSAGES: XXXXXXXXXX CHICKENS, TURKEYS and PHEASANTS 2.4-50 grams/ton For increased rate of weight gain and improved feed efficiency. WARNING: Do not feed to chickens or turkeys producing eggs for human consumption.Zero-day withdrawal period. So now I'm worried.... can we NEVER eat her eggs again!?!?!