I don't think giving dosage info is a smart idea. Besides the obvious fact that there's going to be people who will take them at face value, the whole point of prescription drugs is that a doctor needs to determine a dosage.
Dosages change per condition and from person to person (kids should get less than adults and weighty adults should get more than lighter ones, and then there's adjustments needed for big drinkers, pregnant people and people with lung or heart conditions, just to name a few). There's no way Wikipedia can give reliable information on dosages -ever- there's just too many possibilities.
Mgm