According to the card, the shampoo is for external use only; do not use if hypersensitive to the ingredients; if allergic reactions occur, stop using it and consult a doctor; avoid contact with the eyes and mucous membranes; keep out of the reach of children. The card names no other restrictions.
General information (not a manufacturer's instruction): pregnant and breastfeeding women and children are better off consulting a doctor before using a tar shampoo.