I have not read much in medieval sacramental theology, so I do not know if this position is common or not. It came up when I was reading a series of questions on the efficacy of circumcision; the question I have quoted from below is from one dealing with whether there was some remedy for original sin prior to the institution of circumcision.
Duns Scotus, Ordinatio IV d.1 pars 4 incidentalis q.2 n.389 (XI 138):
"Nullo tempore dimisit Deus cultores suos sine remedio necessario ad salutem; sed omni tempore-post lapsum-fuit necessaria ad salutem deletio originalis; ergo quocumque tempore erat aliquod remedium efficax ad deletionem illius peccati"
At no time did God leave his worshippers without a remedy necessary for salvation; but at every time after the fall the removal of original [sin] was necessary for salvation; therefore at every time there was some efficacious remedy for the removal of that sin.
