4. Non-pregnant and not breast-feeding. The effects of cetuximab, cisplatin, epirubicin, fluorouracil, leucovorin, irinotecan, and oxaliplatin on a developing human fetus are not well-known. Because the risk of toxicity in nursing infants secondary to cetuximab, cisplatin, epirubicin, fluorouracil, irinotecan, and oxaliplatin treatment of the mother is unknown but may be harmful, breastfeeding must be discontinued.