No. 5 cap
is how you used to sell junk. Depending on the quality and the users habit one cap could supply a single fix or several. A first time user would probably od on a whole cap of even very diluted junk. It can take days before fixing a whole cap at once is possible. You use to be able to buy a bundle - 25 caps - for approximately the price of 20 caps. The idea was for street level dealers to sell the twenty and recover the cost and still have enough for themselves to maintain. Never worked like that for long.