Slow poison

When the slow poison spell is placed upon a poisoned individual, it greatly slows the effects of venom, if cast upon the victim before the poison takes full effect. While this spell does not neutralize the venom, it does prevent it from substantially harming the individual for the duration of its magic in the hope that, during that spell period, the poison can be fully cured.

Note: This spell originally appeared in this form in the 2nd Edition Player's Handbook for Advanced Dungeons & Dragons from TSR. Its use here is for the purposes of providing context for the campaign only.