What would you include and how would you organize a persuasive essay saying that over the counter drugs should not be available to everyone?

A persuasive essay trying to convince people that some
over the counter drugs should not be sold to just anyone without limits could contain
any or all of the following arguments:

1)  Some of those
drugs are abused - such as cold medicine by teens, and some contain drugs that make
people drowsy and too dangerous to drive.  Age limits on who can buy those drugs (such
as 18 or older) is reasonable

2)  Sudafed is used by
methamphetamine manufacturers as a basic ingredient, so placing limits on age or on
quantity is reasonable

3)  Some drugs are dangerous for
women who are pregnant or may become pregnant, or that are taking other medicines too,
so requiring that such drugs be asked for over the counter and getting a pharmacist
consult when you buy them is a reasonable restriction, so they can refuse to sell them
to those they think may be endangered by them

When
organizing this essay, depending on how long or detailed your assignment is, you would
want your first paragraph to be your main thesis argument.  If you used the above
material, you could state that "Limiting sales of over the counter drugs to certain
people and age groups is reasonable because...", then you can list (not explain)
specifics from the main points you wish to make that prove that statement
true.