If they aren't familiar with ephedrine I'd suggest trying them orally first.
Do the pills have anything other than ephedrine in them? Most OTC ephedrine products where I am also contain at least one other ingredient, and generally speaking you'd want to avoid snoring them.
Avoid taking any more ephedrine until they know how it affects them. Also avoid other stimulants like caffeine, amphetamine, etc. until the effects wear off.