Diptam

The Diptam (Dictamnus albus), also known as "Burning Bush" or "Aschwurz", is a perennial, herbaceous plant from the family of rue plants** (Rutaceae). It prefers to grow in sunny, dry locations in Southern, Central, and Eastern Europe as well as in parts of Asia. In Germany, Diptam is under strict nature protection and is specially protected due to its rarity and sensitive habitats. The plant impresses not only with its light pink to violet-veined flowers but above all with an extraordinary botanical phenomenon: It secretes essential oils that can form a slightly flammable atmosphere around the plant in hot summer air – a circumstance that earned it the name "Burning Bush". Since antiquity, Diptam has been used in traditional medicine, among others by Hippocrates and Hildegard von Bingen, who recommended it for women's ailments, digestive disorders, and for "blood purification". Today, Dictamnus albus is of interest to research primarily because of its essential oils, bitter compounds, and secondary plant substances.

What benefits does Diptam offer for health? The Diptam** contains a large number of pharmacologically active substances. The plant is used in naturopathy for numerous problems – modern studies, however, are still in their early stages, and more research is necessary to be able to make conclusive statements about the plant.

  • Antioxidant properties: Scientific work has shown that extracts of the plant possess significant antioxidant activity (1,2,3).
  • Antimicrobial potential: Initial laboratory investigations point to antibacterial and fungicidal properties of some constituents, particularly the furocoumarins (3).
  • Various health effects: Due to the multitude of bioactive compounds, the plant shows broad medicinal potential. Studies demonstrate, among others, anticarcinogenic, platelet aggregation-inhibiting, vasodilating, insect-repellent, antiviral (against HIV), antiallergic, digestion-promoting, antispasmodic, and neuroprotective effects (4).
  • Gynecology: In traditional medicine, Diptam was used for menstrual complaints and to support the uterus. However, current sources that would substantiate this effect are lacking.

It is important to note here that the names Dictamnus angustifolius and Dictamnus albus refer to the same plant. Therefore, when reviewing studies, one must take care to consider and include works on both names.

How does Diptam work in the body? The health effects of Diptam are primarily attributed to the combination of bitter compounds, furocoumarins (such as xanthotoxin and bergapten), flavonoids, and essential oils (1–4).

Are there risks or side effects?

  • Phototoxicity: Furocoumarins make the skin more sensitive to sunlight – even skin contact with plant parts, in combination with UV light, can lead to redness, blistering, or burns.
  • Not suitable for pregnant women: Due to the insufficient study situation, breastfeeding and pregnant women are advised against using it.
  • Caution with internal use: Diptam is a potent plant – internal use should only take place under medical supervision.

Conclusion Diptam is an interesting medicinal plant with a long tradition and a unique botanical appearance. Modern science recognizes individual constituents as pharmacologically interesting – particularly with regard to the range of various health-promoting effects. Due to phototoxic risks and possible side effects, however, its use should only take place with caution and under expert guidance. In folk medicine, Diptam remains a fascinating, if sensitive, plant.

Sources:

  1. Škondrić, S., Trifković , T., Mihajlović, D., Nakarada, Đura, Mojović, M. ., & Kukavica, B. (2025). Antioxidant activity and metal content: a study on Dictamnus albus. Acta Biologica Slovenica, 68(2), 53-66. https://doi.org/10.14720/abs.68.2.21295
  2. Nissar, S., Majid, N., Reshi, F. A., Raja, W. Y., Nawchoo, I. A., & Bhat, Z. A. (2021). Phytochemical variation in Dictamnus albus in relation to different parts: A perspective. International Journal of Biology, Pharmacy and Allied Sciences (IJBPAS), 10(5), [Artikelnummer 5474]. https://doi.org/10.31032/IJBPAS/2021/10.5.5474
  3. Sun, J., Wang, X., Wang, P., Li, L., Qu, W., & Liang, J. (2015). Antimicrobial, antioxidant and cytotoxic properties of essential oil from Dictamnus angustifolius. Journal of ethnopharmacology, 159, 296–300. https://doi.org/10.1016/j.jep.2014.06.055
  4. Lv, M., Xu, P., Tian, Y., Liang, J., Gao, Y., Xu, F., Zhang, Z., & Sun, J. (2015). Medicinal uses, phytochemistry and pharmacology of the genus Dictamnus (Rutaceae). Journal of Ethnopharmacology, 171, 247–263. https://doi.org/10.1016/j.jep.2015.05.053