Piscidia piscipula formerly known as Piscidia erythrina and commonly known as Jamaican dogwood or Florida fishpoison tree, is a tropical, deciduous, medium-sized tree endemic to the Caribbean, Texas, southern Florida and the Keys, and Latin America. Historic use of the herb details West Indies Natives using the extracts from the tree to sedate fish (Fetrow & Avila, 2000). The sedated fish became easy to catch by hand leading to the common name of fishpoison. In modern times, scientists have discovered use for the herb as a sedative and analgesic.The historic use of Jamaican Dogwood has been to catch fish by hand by sedating them and other traditional uses. Because the herb has sedative and analgesic properties, people of the Caribbean used it for pain relief, aid for labor, menstruation pains, toothaches, migraines, insomnia, and asthma. They would consume it either as a tincture, as a dried product, or as an extract. Some side effects of those who took Jamaican dogwood, would be nausea, drowsiness or sedation, and/or stomach upset (Fetrow & Avila, 2000). Those experiencing overdose symptoms can experience sweating, tremors, and salivation.

The main use for the herb has been and still is, for pain relief of all kinds....

From nerve pain to labor pains, the herb has received international use in recent times as an effective treatment for mild pain (Fetrow & Avila, 2000). In the last few years, women with menstrual pain in the form of endometriosis, have attempted to use Jamaican Dogwood extracts to relieve chronic pain associated with the problems caused by the uterine lining. Alternative medicine doctors have taken interest in the use of the herb for menstrual pain relief and began using it in their practice. "Sedatives are useful when there is the need to induce deep rest or sleep to obtain pain relief, and include California poppy, or a combination of cramp bark and Jamaican Dogwood" (Romm, 2016, p. 263).
Because Jamaican Dogwood has rarely been studied outside of homeopathic use (only used in animal studies), there is little to no scientific research made on the effects of the herbs on humans. This is especially true for the herbs potential interactions with conventional medications. The implications for Jamaican Dogwood regarding possible interactions is that it may increase the effects medications used for treatment of insomnia or anxiety. Otherwise, most of the information available on Jamaican Dogwood is anecdotal…