Is Ethyl 1-(3-cyano-3,3-diphenylpropyl)-4-phenyl-4-piperidinecarboxylate Safe in Breastfeeding

I am a breastfeeding mother and i want to know if it is safe to use Ethyl 1-(3-cyano-3,3-diphenylpropyl)-4-phenyl-4-piperidinecarboxylate? Is Ethyl 1-(3-cyano-3,3-diphenylpropyl)-4-phenyl-4-piperidinecarboxylate safe for nursing mother and child? Does Ethyl 1-(3-cyano-3,3-diphenylpropyl)-4-phenyl-4-piperidinecarboxylate extracts into breast milk? Does Ethyl 1-(3-cyano-3,3-diphenylpropyl)-4-phenyl-4-piperidinecarboxylate has any long term or short term side effects on infants? Can Ethyl 1-(3-cyano-3,3-diphenylpropyl)-4-phenyl-4-piperidinecarboxylate influence milk supply or can Ethyl 1-(3-cyano-3,3-diphenylpropyl)-4-phenyl-4-piperidinecarboxylate decrease milk supply in lactating mothers?

No data exist on the use of Ethyl 1-(3-cyano-3,3-diphenylpropyl)-4-phenyl-4-piperidinecarboxylate during breastfeeding. One expert panel considers Ethyl 1-(3-cyano-3,3-diphenylpropyl)-4-phenyl-4-piperidinecarboxylate to be unacceptable during breastfeeding.[1] Based on its chemical and pharmacological similarity to narcotics, occasional small doses of Ethyl 1-(3-cyano-3,3-diphenylpropyl)-4-phenyl-4-piperidinecarboxylate may be acceptable while breastfeeding an older infant, but alternatives are preferred, especially while nursing a newborn.