Ephedrine is a naturally occuring central nervous system stimulant obtained from the plant Ephedra equisetina. Ephedrine is produced by chemical synthesis, the synthetic product being marketed in the form of its salt, ephedrine sulfate; it occurs as a white crystalline powder with a bitter taste, soluble in water and very soluble in alcohol. Ephedrine's peripheral stimulant actions are similar to but less powerful than those of epinephrine (also called adrenaline), a hormone produced in the body by the adrenal glands. For personal use only. Not to be used as a precursor for any illegal products. TAKE ONLY ON THE ADVICE OF A PHYSICIAN. Ephedra sinica (ma huang), is the source of the alkaloid ephedrine. It has been traditionally used in traditional Chinese medicines, and is often used as a bronchodilator. Ephedrine is not to be used by people with heart disease, hypertension, diabetes, thyroid disease, enlarged prostate, anxiety and restlessness or glaucoma, people taking monoamine oxidase inhibitors or women who are pregnant or lactating. Do not exceed the recommended dosage or take for more than 7 consecutive days except on the advice of a physician. Warning: Keep out of reach of children. Not for use by individuals under the age of 18. Do not use if pregnant or nursing or at risk of being treated for high blood pressure, heart disease, renal disease, hyperthyroidism, spasms, psychiatric disease, suffer from migraines, are allergic to tyramine or chocolate, have asthma or are taking asthma medication. Ephedrine should not be used by anyone with any health conditions. Use at your own risk and consult with a physician prior to use and discontinue use immediately if any adverse effects ranging from dizziness, tremors, headaches and heart rate irregularities to seizures, psychosis, heart attacks and strokes are experienced.