* Pentobarbital interacts with Holy Basil.
* Diazepam and scopolamine are two drugs which help reduce nausea, vomiting and nervousness, anxiety respectively. Tulsi might reduce the amnesic effect caused by these two drugs.
* Skin sensitivity may accur.
==The benefits of Holy Basil are==
*Common cold.
*Influenza ("the flu").
*Asthma: Tulsi is very beneficial in the treatment of asthma since it relieves congestion and facilitates smoother breathing. The phytonutrients and essential oils, along with the other minerals in it, help cure some of the underlying causes of asthma as well.*Bronchitis: Tulsi, along with curing viral, bacterial, and fungal infections of the respiratory system, gives miraculous relief in congestion due to the presence of components like camphene, eugenol, and cineole in its essential oils. It is very effective in curing almost all respiratory disorders including bronchitis, both chronic and acute.
*Earache.
*Headache.