Is Vitamin A1 Safe in Breastfeeding

I am a breastfeeding mother and i want to know if it is safe to use Vitamin A1? Is Vitamin A1 safe for nursing mother and child? Does Vitamin A1 extracts into breast milk? Does Vitamin A1 has any long term or short term side effects on infants? Can Vitamin A1 influence milk supply or can Vitamin A1 decrease milk supply in lactating mothers?

Vitamin A1 is also a name for vitamin A which is a natural component of human milk. Content in the human milk is about 2,800 IU/L (750 μ/L). Infant's recommended dietary daily allowance is 2,000 IU (600 μ/L). Mother's recommended daily allowance is 3,200 IU (950 μ/L). There is a risk for severe intoxication after an isolated dose of 25,000 IU or long-standing daily consumption of 5,000 IU. After a megadose administration of vitamin A increases concentration to a double in the colostrum. Supplementation with vitamin A to breastfeeding mothers or infants does not reduce mortality or morbidity among HIV affected offsprings, instead it increases the likelihood of transmission of HIV or subclinical mastitis in those mothers infected with HIV. Vitamin A is widely distributed in the food of animal or vegetable origin. Except for populations affected with food shortage or nutritionally deficient, those women on a complete and varied diet do not need the intake of vitamin A supplementation The List of Essential Medicines of WHO-2002 classifies it as compatible with breastfeeding.