Cereus, the flowers and stems of night-blooming cereus (Selenicereus grandiflorus; Cactus grandiflorus) (Cactaceae), is thought to have cardiac stimulant actions and has been used in various cardiovascular disorders. It has also been used as an anthelmintic and in the treatment of rheumatism.

Homoeopathy.

Cereus has been used in homoeopathic medicines under the following names: Cactus; Selenicereus grandiflorus; Cactus grandiflorus.

Multi-ingredient: Ger.: Cardibisana†; Oxacant N†; Oxacant-forte N†; Oxacant-Khella N†.