The HCL is an abbreviation for hydrochloride (HCL), and is also immediate release, with no Tylenol in it.
It is probably the smartest thing to do and simply call your pharmacist and ask them. They should know...and I'm at a loss here on this one.
Could you tell us a little about
yourself, and what you are being treated for? The members would love to know more about
you, and welcome you here.
Take care,
SE