| A cup of tea made with Ephedra nevadensis, for instance, delivers a dose of ephedrine or pseudoephedrine powerful enough to suppress lactation. |
| He studied the tissue distribution and metabolism of caffeine, amphetamines, ephedrine, and narcotic drugs. |
| Most of ephedra's activity stems from the ephedrine component, which produces amphetamine-like actions. |
| We do not suggest replacing ephedrine with pseudoephedrine, due to its weak effects. |
| The active ingredient in ephedra is the chemical ephedrine, which can be converted into the street drug methamphetamine. |
| Sudafed contains the nasal decongestant pseudoephedrine, which is structurally similar to ephedrine, yet they do have different properties. |
