
Hara Nanyo's Formula B, in short spells
Yi Zi Tang was never designed to be taken every day for months. Hara Nanyo built it for a hot, heavy, dragging feeling in the lower body, and with rhubarb root in the mix (only a little, but it's there), Kampo practice was to use it when that picture flared and then stop. The six-pack follows the same thinking. It's a supply for the cupboard, so you've got it to hand when a spell comes on instead of ordering in a hurry.
Kampo doctors linked this pattern with long hours sitting. If your job keeps you at a desk all day, that's worth knowing, and it's also why everyday habits (moving about, water, fibre) matter a good deal more here than how many bottles are on the shelf.
For short spells, with breaks in between
How to use a cupboard supply
When you need it
A short spell
Three morning, three evening, for a few days to a couple of weeks when that hot, heavy feeling low down flares. Then stop.
In between
A proper break
Between spells? Leave it in the cupboard. Up from the desk every so often, a decent amount of water, your greens (yes, really). They keep fine, the bottles, so don't feel you've got to get through them.
If it carries on
See your GP
Bleeding at all? Bowels changed and staying changed? Or it keeps coming back? Honestly, that's a GP job, not a job for another bottle.
Pregnant or breastfeeding? Then no Yi Zi Tang, there's rhubarb root and dong quai in it. Same goes if you're on warfarin or another blood thinner, if your blood pressure runs high (that's the liquorice) or your liver's ever given you trouble. On something regular from the doctor? We'd want you to have a word with your GP or pharmacist first.
Choosing between them
Neighbours in lifting and clearing
Yi Zi Tang pulls two ways at once, lifting and clearing. These two neighbours each lean harder in one direction.
This page
Yi Zi Tang
A Japanese Kampo formula for Heat with sinking Qi in the lower body. A big dose of bupleurum lifts, while skullcap and a little rhubarb clear. Traditionally taken in short spells.
All lift, no heat
Bu Zhong Yi Qi Wan
For the drained, dragged-down person, worse when tired. There's ginseng and astragalus in there to build you up, and bupleurum doing the lifting. Herbalists chose it when sinking came with tiredness and no real Heat.
See Bu Zhong Yi Qi WanMoistening and moving
Tong Bian Ling Pian
Peach kernel with dong quai and rhubarb, for the dry, slowed-down Large Intestine picture when Blood runs thin. Also rhubarb-containing, so also short-term.
See Tong Bian Ling PianWhat's in the box
Six bottles of Yi Zi Tang
Every bottle is the same: 60 tablets of the formula on our single bottle page, so 6 a day gives you 10 days a bottle.
| Chai Hu Bupleurum chinense | 1246mg |
| Huang Qin Scutellaria baicalensis | 471mg |
| Dang Gui Angelica sinensis | 942mg |
| Da Huang Rheum officinale | 236mg |
| Gan Cao Glycyrrhiza glabra | 471mg |
Also contains: Cassava starch, Hypromellose, Magnesium stearate, Polyethylene glycol, Talc.
Living with six bottles
The practical bits
Storing them
Somewhere cool and dry, out of direct sun. Leave the bottles you're not using sealed until you need them.
Best before
Every bottle carries its own best-before date on the label, so check the one you open next.
Delivery
Order before 3pm on a weekday and it goes out the same day from Essex. UK delivery is free on orders over £40.
Changed your mind?
Sealed, unopened bottles can be returned within 14 days of delivery. The details are in our refund policy.
Verified Loox reviews
What people say about Yi Zi Tang
I take 3 pills in the morning and 3 in the evening and is have improved my sleep 😴
Nathalia F., verified buyer of Gui Pi TangHave been recommended to help me restore my sleep and it has been really useful.
Nathalia F., verified buyer of Gui Pi TangI have suffered from prolapse for years and it was better after using one bottle of this product. I am using a second bottle now and the condition is improving.
Yiu L., verified buyer of Bu Zhong Yi Qi WanYi Zi Tang: your questions
Is Yi Zi Tang used for haemorrhoids?
Historically, yes, haemorrhoids were top of the list in the Edo-period Kampo books, and that's still where it often comes up. It isn't a treatment for haemorrhoids or any medical condition, though. Bleeding from the bottom, a change in bowel habits or anything that lasts more than a couple of weeks should always be checked by your GP.
How long did Kampo doctors keep people on it?
Not long, as a rule. With rhubarb root in the formula, it was used while the hot, heavy picture was obvious and then put aside. Days to a couple of weeks is the sort of spell people talk about. If you find yourself wanting it continuously, that's a sign to see your GP and find out what's going on.
Did desk work really come into it?
It did, in Kampo thinking. Doctors noticed the pattern in people who sat for long hours, and the advice that went with it was simple: get up and move regularly, don't strain, eat fibre and drink water. Japanese scholars and clerks of the Edo period had their own version of the office chair, it seems.
Can I take it with Xiao Chai Hu Tang?
Best not without advice. They share three herbs, you see (bupleurum, Baikal skullcap, liquorice), and doubling up on those isn't clever, since they've now and then been tied to liver reactions. Rare, but still. Fancy both? Ask a qualified practitioner which suits you and stick to that one, we'd say, rather than mixing them at home.
Why sell Yi Zi Tang as a six-pack if it's short-term?
Because people who use it tend to come back to it now and then, and it's handy to have some in the cupboard. It's the same five-herb formula as the single bottle. Each bottle covers ten days at six a day, but this pack is meant for short spells over time, not sixty days straight.
Yi Zi Tang, six bottles at once
Back to the 6 pack
