Hi I would like to know does pyridoxine stop breastsmilk if you take it?

Very high doses of vitamin B6 have been reported to decrease breast milk.
Doses of 200 mg a day for 5 to 7 days may help to relieve engorgement.

The safest way to suppress lactation after childbirth is to let milk production dry up naturally. Avoid stimulating the breasts or expressing milk. Over-the-counter pain relievers, ice packs and a supportive bra can help relieve breast engorgement and pain.