Who are the fir needles suitable for, and are there contraindications? — Fir needles (hvoja pihty) 50 g Horst

According to the card, the fir needles are not a medicine but a plant raw material for preparing a tea drink. Do not use in case of hypersensitivity to the ingredients; if allergic reactions appear, stop use and consult a doctor; before use during pregnancy, breastfeeding or when taking medicines, consult a specialist. The description says that the needles contain essential oil, ascorbic acid and flavonoids.

General information (not a manufacturer's instruction): who exactly the drink is suitable for, the card does not name.