Is ephedrine (ephedrine sulfate) another name for adrenaline?

No.: I think you are thinking of epinephrine, which is the same as adrenaline.

Similar but diff: Ephedrine (ephedrine sulfate) is a compound that is found in some natural products (in small amounts) and is used in many otc drug products, and in a lot of "natural remedies". It's actions are very similar to adrenaline. In low doses, it can be a mild stimulant, like caffeine. In higher doses, or in susceptible people, it can be dangerous.