Some of the well-known side-effects related to Coleus Forskohlii consist of headache, cough, infection, tremors and raised heart rate. Because of it there are some individuals who have to refrain from using Forskolin. It is recommended to avoid the use of Forskolin if you already take anti-platelet medications. People with blood pressure who take medicines should avoid Forskolin. There are actually beta-blockers, calcium channel blockers, Clonidine as well as Hydralazine which will pose risk towards your physical health if you are on Forskolin.