Yes, Allerta (Loratadine) tablet is safe to use. Because of its lack of sedation and low milk levels, maternal use of loratadine would not be expected to cause any adverse effects in breastfed infants. Just a reminder, loratadine might have a negative effect on lactation, especially in combination with agent such as pseudoephedrine. It is recommended that loratadine should be at its lowest dose as a preferred choice of an antihistamine is required during breastfeeding.