Absorption delay NOT completed before the next dose is given

Dear NM users, NM help files says the following about ALAG "When additional doses are specified on a dose event record, the absorption lag time applies to the dose and to all the additional doses. In this case the lag time should not exceed the (length of the) interdose interval" My questions are a) Why doesn't ADDL work for the above specific case? b) I am running linear models with ADVAN2 and ADVAN5 and absorption delay is NOT completed before the next dose is given. Due to the problem stated above I am not using ADDL. Instead I have a dosing record at every time a dose enters the depot compartment. Will this circumvent the problem stated above? In other words does ALAG always have to be smaller than II and why? Please advice…MNS