Side effects of forskohlii vary depeding upon the delivery of the medication. Taken intravenously, forskohlii may cause flushing and low blood pressure. When inhaled, forskohlii may cause restlessness, throat irritation, coughing and tremors. If administered in an eye drop, it may cause stinging, according to WebMD.
Forskohlii, also known as coleus, coleus forskohlii or forskolin, is traditionally extracted from the root of a plant called Plectranthus barbatus, which has forskolin as its active chemical ingredient. Historically, forskohlii has been used to treat heart disorders, such as angina and high blood pressure, and respiratory disorders. As of 2015, however, there is no scientific evidence proving the effectiveness of forskohlii in treating these conditions, says WebMD.
Forskolii is possibly effective in the treatment of idiopathic congestive cardiomyopathy. Research shows that in some patients, an intravenous delivery of the medication improves heart function. When delivered through an inhaler, forskolii is possibly effective in treating asthma. There is insufficient evidence supporting the use of forskolii as a treatment for other conditions, such as allergies, erectile dysfunction, seizures, insomnia and blood clots. Other unfounded treatment claims include the use of forskohlii as a treatment for cancer, chest pain, irritable bowel syndrome and obesity, states WebMD.