Compounds from sponges have shown a variety of bioactivity, such as cytotoxic, anti-fungal and anti-inflammatory effects. To date, no compounds have been described from the sponges Halichondria sitiens and Geodia macandrewi but several compounds have been described from other Halichondria and Geodia species.
Úr svömpum hafa fundist efni með ýmis konar líffræðileg áhrif, s.s. frumudrepandi, sveppahemjandi og bólguhemjandi áhrif, en engum efnum hefur enn verið lýst úr Halichondria sitiens og Geodia macandrewi, þó nokkrum efnum hafi verið lýst úr Halichondria og Geodia tegundum.