Otoba bark is one of my favorite herbs in my herbal support plans, and Montana Farmacy’s tincture is the version I use. It is a traditional 1:5 extract of Otoba parvifolia bark in organic cane alcohol, handcrafted in small batches. It comes out of the Buhner tradition and the Cowden family of herbs, usually paired with cat’s claw, and it is one of the herbs I discuss in my own herbal guide.

Why this herb. In lab work, Otoba parvifolia has shown activity against spirochete, cyst, and biofilm communities of Borrelia, and when it is combined with cat’s claw, the pair has greater effects on biofilm-like aggregates too. In my practice I use it as one of the core herbs of an ongoing plan, most often side by side with cat’s claw. It also serves as a lower-cost substitute for Nutramedix Banderol, which is the same herb under a different label.

The traditional use is 30 drops two times a day, diluted in a little water or juice; work with your physician on whether it fits your plan. At that dose a 2oz bottle lasts about a month. Like the rest of these herbs, it is a months-long commitment taken consistently as part of a plan.

Know the cautions. I am candid about the science: the strongest evidence is in vitro and review-level, not human trials. I do not use it in pregnancy, per the label warning. Anyone on prescription medication should review it with their physician before starting. It works inside a full plan, with sleep, food, and the other herbs, not as a stand-alone.