Can cause nervousness and excitation, and overuse can lead to headaches, insomnia and heart palpitations. Can increase blood pressure. Should not be used if you are taking prescriptions for high blood pressure or Coumadin. Should not be taken digoxin, a heart medication. The mix may lower heart rate too much.
High doses can lead to increased blood pressure, water retention and potassium loss.
Do not use with diuretics or digoxin because it could lead to further loss of potassium, essential for heart function. Do not take with other anti-depressant medications. Contains ephedrine, which can open up bronchial passages. It's controversial because it's a powerful stimulant that can raise blood pressure, cause insomnia and high blood pressure. Do not mix with heart medications or if you are being treated for high blood pressure, glaucoma or thyroid problems.