Drug
Epinephrine
Pronounced
"EP-i-NEF-rin"
Drug Interactions
Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.
Negative Interactions
2- Potential Negative Interaction
Epinephrine
Ephedra
Ephedra is the plant from which the drug ephedrine was originally isolated. Epinephrine and ephedrine have similar effects and side effects. Until 2004, ephedra—also called ma huang—was used in many herbal products, including supplements promoted for weight loss. While interactions between epinephrine and ephedra have not been reported, it seems likely that such interactions could occur. To prevent potential problems, people should not be taking both epinephrine and ephedra/ephedrine-containing products.
EphedraEpinephrine- Threlkeld DS, ed. Respiratory Drugs, Bronchodilators, Sympathomimetics. In Facts and Comparisons Drug Information. St. Louis, MO: Facts and Comparisons, May 1994, 177-a.
- Potential Negative Interaction
Epinephrine
Foods with Caffeine
Epinephrine can increase blood pressure and heart rate. Caffeine, especially in large amounts, can also increase heart rate. When given with phenylpropanolamine, a drug with effects similar to epinephrine, caffeine has been shown to produce an additive increase in blood pressure. Caffeine is found in coffee, tea, soft drinks, chocolate, guaraná (Paullinia cupana), nonprescription drugs, and supplements containing caffeine or guaraná. While no interactions have been reported between epinephrine and caffeine, people using epinephrine can minimize the potential for interactions by limiting or avoiding caffeine.
Foods with CaffeineEpinephrine- Threlkeld DS, ed. Respiratory Drugs, Bronchodilators, Sympathomimetics. In Facts and Comparisons Drug Information. St. Louis, MO: Facts and Comparisons, May 1994, 177-a.
- Threlkeld DS, ed. Central Nervous System Drugs, Analeptics, Caffeine. In Facts and Comparisons Drug Information. St. Louis, MO: Facts and Comparisons, Feb 1998, 230-d.
- Brown NJ, Ryder D, Branch RA. A pharmacodynamic interaction between caffeine and phenylpropanolamine. Clin Pharmacol Ther 1991;50:363-71.
Supportive Interactions
1- Support Medicine
Epinephrine
Coleus
A test tube study demonstrated that the bronchodilating effects of salbutamol, a drug with similar actions in the lung to epinephrine, were significantly increased by the addition of forskolin, the active component of the herb Coleus forskohlii. The results of this preliminary research suggest that the combination of forskolin and beta-agonists might provide an alternative to raising the doses of the beta-agonist drugs as they lose effectiveness. Until more is known, coleus should not be combined with epinephrine without the supervision of a doctor.
ColeusEpinephrine- Yousif MH, Thulesius O. Forskolin reverses tachyphylaxis to the bronchodilator effects of salbutamol: an in-vitro study on isolated guinea-pig trachea. J Pharm Pharmacol 1999;51:181-6.
Explanation Required
3- Needs Explanation
Epinephrine
Magnesium
Intravenous administration of epinephrine to human volunteers reduced plasma concentrations of vitamin C. Epinephrine and other “stress hormones” may reduce intracellular concentrations of potassium and magnesium. Although there are no clinical studies in humans, it seems reasonable that individuals using epinephrine should consume a diet high in vitamin C, potassium, and magnesium, or should consider supplementing with these nutrients.
MagnesiumEpinephrine- Cox BD, Clarkson AR, Whichelow MJ, et al. Effect of adrenaline on plasma vitamin C levels in normal subjects. Horm Metab Res 1974;6:234-7.
- Raab W. Cardiotoxic effects of emotional, socioeconomic, and environmental stresses. In Myocardiology, vol I, ed. E Bajusz, G Rona. Baltimore: University Park Press 1970, 707-13.
- Needs Explanation
Epinephrine
Potassium
Intravenous administration of epinephrine to human volunteers reduced plasma concentrations of vitamin C. Epinephrine and other “stress hormones” may reduce intracellular concentrations of potassium and magnesium. Although there are no clinical studies in humans, it seems reasonable that individuals using epinephrine should consume a diet high in vitamin C, potassium, and magnesium, or should consider supplementing with these nutrients.
PotassiumEpinephrine- Cox BD, Clarkson AR, Whichelow MJ, et al. Effect of adrenaline on plasma vitamin C levels in normal subjects. Horm Metab Res 1974;6:234-7.
- Raab W. Cardiotoxic effects of emotional, socioeconomic, and environmental stresses. In Myocardiology, vol I, ed. E Bajusz, G Rona. Baltimore: University Park Press 1970, 707-13.
- Needs Explanation
Epinephrine
Vitamin C
Intravenous administration of epinephrine to human volunteers reduced plasma concentrations of vitamin C. Epinephrine and other “stress hormones” may reduce intracellular concentrations of potassium and magnesium. Although there are no clinical studies in humans, it seems reasonable that individuals using epinephrine should consume a diet high in vitamin C, potassium, and magnesium, or should consider supplementing with these nutrients.
Vitamin CEpinephrine- Cox BD, Clarkson AR, Whichelow MJ, et al. Effect of adrenaline on plasma vitamin C levels in normal subjects. Horm Metab Res 1974;6:234-7.
- Raab W. Cardiotoxic effects of emotional, socioeconomic, and environmental stresses. In Myocardiology, vol I, ed. E Bajusz, G Rona. Baltimore: University Park Press 1970, 707-13.