I weigh 145 or so and 30mg is alright for me.
Someone 210 might get off on 45-50mg which would be like ten of the pills you had.
They come in three strengths of hydrocodone/acetaminophen (tylenol) the highest being 10mg of hydrocodone, I wouldn't mess around with anything weaker. Because of the tylenol you would have to do a cold water extraction if you were to take over six tablets.