Is Demethylchlortetracycline base Safe in Breastfeeding

I am a breastfeeding mother and i want to know if it is safe to use Demethylchlortetracycline base? Is Demethylchlortetracycline base safe for nursing mother and child? Does Demethylchlortetracycline base extracts into breast milk? Does Demethylchlortetracycline base has any long term or short term side effects on infants? Can Demethylchlortetracycline base influence milk supply or can Demethylchlortetracycline base decrease milk supply in lactating mothers?

Although it is secreted into breast milk it has not been detected in infant’s blood because it forms unabsorbable chelate compounds with milk calcium. It is not recommended a long-term use (more than 3-4 weeks) since damage on bone growth plates, teeth discoloration, or alteration of intestinal flora may occur. Be aware of the possibility of false negative results of bacterial cultures when the mother is on antibiotics. Withdrawn from the market in Spain.

A number of reviews have stated that tetracyclines are contraindicated during breastfeeding because of possible staining of infants' dental enamel or bone deposition of tetracyclines. However, a close examination of available literature indicates that there is not likely to be harm in short-term use of Demethylchlortetracycline base during lactation because milk levels are low and absorption by the infant is inhibited by the calcium in breastmilk. Short-term use of Demethylchlortetracycline base is acceptable in nursing mothers. As a theoretical precaution, avoid prolonged or repeat courses during nursing. Monitor the infant for rash and for possible effects on the gastrointestinal flora, such as diarrhea or candidiasis (thrush, diaper rash).