Chinese Herbal Medicine in Los Angeles: What It Treats, How a Formula Is Made and How to Take It Safely

Chinese herbal medicine is the internal half of Traditional East Asian Medicine. Acupuncture works from the outside, through needles. An herbal formula works from the inside, taken every day as a tea, a powder stirred into hot water, or a capsule. At Nature Acupuncture & Herbs, formulas are written by licensed acupuncturists who studied herbology as part of their graduate degree, and each formula is matched to the person rather than to a diagnosis label.

What a formula is

A Chinese herbal formula combines 4 to 15 ingredients. Most are plants: roots, barks, seeds, leaves and fruits. A few are minerals. Each ingredient has a job. A chief herb targets the main problem. Supporting herbs strengthen it. Other herbs handle secondary symptoms, and one or two harmonizing herbs make the whole formula easier on the stomach.

Many of the formulas still in use are old. Si Jun Zi Tang (Four Gentlemen) for weak digestion and Xiao Yao San (Free and Easy Wanderer) for stress that disrupts digestion and the menstrual cycle both appear in a Song dynasty government formulary from the 1080s. A modern practitioner starts from a classical base like these and adjusts it to the patient.

Formulas come in three formats. Raw herbs are simmered at home into a strong tea. Concentrated granules, the most common format in American clinics, dissolve in hot water and take about a minute to prepare. Capsules and tablets hold fixed formulas and are convenient for travel. We use granules for most patients because the dose is precise and the formula can change at any visit.

What the research supports

The evidence is uneven, and it is better to say so than to oversell it. Many trials come from Chinese hospitals, are small, and do not describe the herbs well enough for anyone to repeat them. A few studies were run to a standard that Western journals accept.

The best known is a trial published in JAMA in 1998. Researchers at the University of Western Sydney randomized 116 people with irritable bowel syndrome to a standard Chinese formula, an individualized formula, or a placebo, with neither patients nor doctors knowing who got what. Both herbal groups improved more than placebo over 16 weeks. Fourteen weeks after treatment stopped, only the individualized group had held its gains. That is the strongest evidence we have that tailoring a formula to the person matters.

A Cochrane review of Chinese herbal medicine for painful periods pooled 39 trials with 3,475 women. Herbal formulas relieved pain better than conventional painkillers, and better than acupuncture in the trials that compared the two. The reviewers called the results promising and then warned that most of the trials were poorly designed, so the size of the benefit is uncertain.

The compounds inside the herbs are real drugs. Artemisinin, extracted from the herb Qing Hao (sweet wormwood), became the standard treatment for malaria and earned Tu Youyou the 2015 Nobel Prize in Physiology or Medicine. Berberine, the yellow alkaloid in Huang Lian (Coptis root), has dozens of trials behind it for blood sugar and gut infections. These are the same plants that appear in classical formulas.

For hormonal conditions and fertility the research is mixed, with encouraging small trials and few large ones. We cover what is known in our posts on acupuncture for PCOS and menopause symptoms.

What we treat with herbs at Nature Acupuncture & Herbs

Herbs do the heavy lifting for conditions that acupuncture reaches less directly, because the medicine is working all day rather than during a 30-minute session. At our clinics, the most common reasons patients start a formula are:

• Digestive problems such as irritable bowel, bloating, reflux, and loose stools or constipation that diet changes have not fixed.
• Painful or irregular periods, PCOS, and perimenopause symptoms such as hot flashes and broken sleep.

• Fertility support, on its own or alongside IVF, coordinated with your reproductive endocrinologist.
• Chronic fatigue, including the slow recovery that follows a long illness.
• Sleep and stress, especially when acupuncture helps during the week but the effect fades between visits.
• Recurrent colds, allergies and lingering coughs.

You do not need acupuncture to see us for herbs. Some patients come only for herbal consultations. Many combine both, and we wrote about why the pair tends to work better together in this post.

How a custom formula is made

The first visit is a long conversation. Your practitioner asks about the main complaint, then about digestion, sleep, energy, temperature, thirst, sweating and the menstrual cycle, because those details separate one pattern from another. They look at your tongue and feel your pulse at both wrists. Two people with the same Western diagnosis, insomnia for example, often leave with different formulas because the pattern behind the symptom is different.

Your practitioner also reviews every medication and supplement you take before writing anything. Then the formula is written, usually as granules taken twice a day, with instructions on timing and what to expect. The first check-in is one to two weeks later. A formula that works is rarely the one you started with. It is normal for the prescription to change three or four times over a course of treatment.

Most insurance plans do not cover herbal formulas, so ask about the cost of your formula before you start. Our herbal medicine page answers the most common questions.

Safety: the questions to ask any clinic

Herbal medicine is safe when it is prescribed carefully and sourced carefully. Both halves matter. These are the questions we would want answered before taking a formula from anyone, including us.

Who is writing the prescription?

In California, prescribing herbs is part of the acupuncture license (Business and Professions Code section 4937), and the state licensing exam tests herbal medicine. Every practitioner at our clinic holds that license. An online shop or a wellness influencer does not.

Where do the herbs come from?

The FDA regulates herbs as dietary supplements. No product is reviewed for safety before it is sold; the manufacturer is responsible for it, and the FDA acts only after a problem is found. Manufacturing standards for identity and purity have applied since 2010. The National Center for Complementary and Integrative Health has documented Chinese herbal products contaminated with heavy metals, pesticides and even undeclared prescription drugs, almost always products bought outside a clinical setting. The practical question for any clinic is whether its supplier tests each batch for heavy metals, pesticides and microbes and can show the results. Ours does, and your practitioner can show you the testing for your formula.

What does it interact with?

Licorice root (Gan Cao) is in many formulas in small amounts. In large doses or over months it can raise blood pressure and lower potassium, which matters if you take diuretics or blood pressure medication. Herbs that affect clotting, such as Dang Gui and Dan Shen, have case reports of increased bleeding in people on warfarin. Immunosuppressants, chemotherapy and pregnancy all change what can be prescribed. Bring your full medication list, including supplements, and tell your practitioner about any change.

What is not in it?

A licensed practitioner will not use ephedra, which the FDA banned from supplements in 2004, or any herb containing aristolochic acid, which the FDA warned against in 2001 after it was linked to kidney failure. If a product has no ingredient list, do not take it.

What should I watch for?

The most common side effect is mild stomach upset in the first days, which usually settles once the formula is adjusted. Rare cases of liver injury have been reported with some herbal products. That is one more reason to use a practitioner who knows every ingredient in your formula, and to report anything unusual, including dark urine, yellowing skin or persistent nausea, right away.

Herbal consultations in West LA, Hawthorne and Lynwood

Nature Acupuncture & Herbs offers herbal medicine at all three Los Angeles clinics, with or without acupuncture. Your first visit includes a full history, a medication review and a formula written for you. Book online or call (424) 317-0014.