WARNING: Not intended for children or pets. Not for women who are pregnant, may become pregnant or are breastfeeding. Do not drive or operate machinery. Do not use if you are subject to workplace drug testing. Intended Use: Sublingual Drops. Start low & slowly increase serving size over days/weeks if needed. Start with ¼ dropper (.25ml). Expect an onset of effect between 1-2 hours with a duration of effect of 6-8 hours. Start with the lowest concentration ZEN1 and move up to ZEN2 or ZEN3 if needed.