Aushadha Sevana Kala: The Ten Classical Times to Take Ayurvedic Medicine in the Charaka Samhita — Chikitsa Sthana 30's General Rules of Treatment

📖 24 min read · Classical text: Charaka Samhita, Chikitsa Sthana, Chapter 30 (the General Rules of Treatment, verses Ci30#296–340, in the Van Loon presentation of the Sharma/Dash tradition)

What Is Aushadha Sevana Kala?

Aushadha Sevana Kala — from aushadha, medicine, sevana, the taking or attending-upon, and kala, time — is classical Ayurveda’s doctrine of when medicine is to be taken. It is one of the tradition’s most distinctive ideas, and one of its least discussed outside the Sanskrit textbooks: the conviction that the hour of a dose is not an afterthought to the prescription but half of it, decided with the same care as the drug, by the same logic of dosha, patient and season.

The locus classicus for the doctrine is the Charaka Samhita — the tradition’s foundational compendium of internal medicine — in the final chapter of its therapeutics section: Chikitsa Sthana, Chapter 30. There, in a run of verses the text numbers Ci30#296–303, Charaka lays out first the six frames in which “time” must be read, then the celebrated list of ten times of drug administration — the dasha aushadha sevana kala of the later handbooks — and then a table that keys those times to the five vayus, the five functional divisions of the body’s moving principle. Around the clock, like tools hung around a workbench, the chapter gathers the rest of its General Rules of Treatment: routes, doses, habit, region, paradox, convalescence and palate.

Why does a 2,000-year-old text care so much about the clock? Because its whole model of digestion, of dosha movement and of drug action is a model of rhythms. Food descends through stations; the doshas swell and subside by hour, season and age; a drug’s errand changes with the traffic it meets on the way down. A dose that rides an empty stomach travels far and deep; a dose folded into the middle of a meal works on the very fire that is cooking; a dose painted between morsels touches, again and again, the throat and the channels of the breath. Same drug — three different medicines, says the doctrine, depending on the hour and the manner of its taking.

This article walks through the whole closing stretch of Chikitsa Sthana 30 as our source presents it — the ten timings at the centre, and the general rules around them — as a work of scholarship and heritage. It is a reading of a classical text, not a set of instructions: the verses themselves insist, more than once, that these decisions belong to a learned physician weighing a particular patient, and never to a list applied by rote. That warning — delivered in the chapter’s final image of the blind artist — is where the text itself chooses to end, and where we will too.

Chikitsa Sthana 30: “The Excellent Essence of the Treatise”

The Chikitsa Sthana is the therapeutic heart of the Charaka Samhita — thirty chapters of clinical doctrine. Its thirtieth and last chapter does what the closing chapter of a great section should: it steps back from particular conditions and asks what all the foregoing has in common. Our source’s pages open with the section’s own colophon-like sentence: “Thus therapeutics of all diseases is said. This section is the excellent essence of the treatise” (p.551). What follows is not one more protocol but the distillation — the rules a physician carries between cases.

The chapter’s summary list, as the source tabulates it, reads like the syllabus of a final examination: routes of administration; times of administration; the times at which the doshas are aggravated; the signs of under-dose and over-dose; the use of apparently contrary therapy; ethnic suitability; and general counsel (p.550). Every one of those headings gets its verses in the pages we are reading, pp.549–556 of the Van Loon presentation — and every one of them is aimed at the same target: the gap between knowing a formula and knowing how, when, to whom and in what measure to give it.

It is worth pausing on how unusual this is. Many ancient pharmacopoeias list remedies. Far fewer close with a chapter on the grammar of remedies — an explicit theory of administration, timing, dosing and adjustment, stated as general law. It is the difference between a cookbook and a treatise on cooking; and the Charaka Samhita, here more than anywhere, is the latter.

The closing chapter of the Chikitsa Sthana — and, on its margins, the story of a text once broken and made whole again

The Lost Chapters and Drdhabala’s Reconstruction

Before the rules, our pages preserve a piece of textual history that scholars of Ayurveda treasure: the Samhita’s own admission that it was once incomplete. In the treatise of Agnivesha as redacted by Charaka, the source records, seventeen chapters of this section — the Chikitsa Sthana — along with the Kalpa and Siddhi sections, were not available; and Drdhabala, the son of Kapilabala, reconstructed those portions “in order to make this treatise, full of great ideas, complete as it was originally” (p.551).

That single sentence gives the Charaka Samhita the shape modern philology finds in it: a three-layer work — Agnivesha’s original tantra, Charaka’s redaction, and Drdhabala’s completion, centuries later, of what time had eaten. There is no embarrassment in the admission, and that is the striking thing. The tradition did not pretend an unbroken text; it recorded the break and honoured the repairer by name, in the text itself. A medical culture confident enough to document its own gaps is a medical culture that took evidence seriously — the same temperament we will meet again below, when the chapter reasons from observed paradoxes rather than smoothing them over.

For readers who want the wider architecture of the Samhita — its eight sections, its question-and-answer form, its chain of teachers — our Charaka Samhita hub maps the whole treatise; and the five kashaya kalpanas — the forms a medicine can take — are the natural companion doctrine from Sutrasthana 4 to today’s question of when it is taken.

Dosha, Dushya, Nidana: Rules for the Diseases the Text Never Named

The first general rule of the closing chapter answers an objection the redactors clearly anticipated: what about everything you have not covered? The diseases not mentioned in the treatise “because of enormous extent of names and forms,” says the text, are nonetheless within its reach: for them also the above treatment is applicable, with due consideration of dosha and the rest (p.551).

The method is stated in one compact sentence our source renders thus: “The measure contrary to dosha, dushya and nidana is positively beneficial and, if properly applied, overcomes all said or unsaid diseases.” Three terms carry the whole clinical algebra. Dosha — which of the three governing principles has strayed. Dushya — which tissue or substance it has vitiated, the field where the mischief lodges. Nidana — the cause, the habit or exposure that set it going. Identify those three, oppose them, and you have therapy — whether or not the condition has ever been given a name in any book.

This is the tradition’s declaration of independence from mere nosology. A named disease, in this view, is a convenience of teaching; the real object of care is the derangement beneath the name. And immediately — in the same breath — the text adds the qualifier that rules the rest of the chapter: proper application “requires due consideration of place, time, dose, suitability or unsuitability, otherwise even a favourable medicament becomes harmful” (p.551). The right drug, wrongly timed or wrongly measured, changes sides. Everything that follows — the ten timings, the similes, the tables — is the working-out of that one sentence.

The Four Gates: Routes of Administration

Before the clock, the map. The chapter’s survey of routes is brief and geometric — each entrance to the body is paired with the territory it serves, in the source’s table from Ci30 (p.551):

The logic is proximity: deliver the measure to the province where the disorder keeps house. The upper tract is reached from above, the lower from below, the head through its own gate, the surface at the surface. Readers who know the Samhita’s earlier chapters will recognise the doctrine’s elaborations elsewhere — the whole science of nasya, the nasal route, and of basti, which Charaka calls the mother of treatments, are each a full chapter of their own; Ci30 is content to state the principle and move to its real interest: time.

The Six Clocks of Kala: Day, Patient, Drug, Disease, Digestion, Season

Then comes the verse that frames everything: “Time should be known in relation to day, patient, drug, disease, symptoms of digestedness and season” — Ci30#296. Six clocks, running at six speeds, all consulted before a single dose is given.

The text immediately gives one example for each of the first two clocks (Ci30#297). In relation to the day: therapeutic vomiting belongs to the forenoon — the classical hour of kapha, when what must be brought up sits highest. In relation to the patient: “a strong patient should take the drug in the morning on an empty stomach, while the weak one should take the same mixed with light and wholesome food.” The same medicine, two deliveries — the robust constitution can bear the undiluted dose on the fasting stomach, where it acts fastest; the frail one receives it cushioned in food, slower and gentler. Strength, not age or station, is the dial.

The clock of disease gets its own illustration a few verses later (Ci30#304): in the classical management of jvara (fever, the Samhita’s archetypal disease and a subject of scholarly discussion since its Nidana Sthana), the text sequences liquid gruel, decoctions, milk, ghee and purgation “every sixth day, one after the other, also considering the condition of the disease” — a therapy that unfolds on a six-day metre, each measure timed to a stage. The point, for the general rule, is not the particulars but the shape: some clocks tick in hours, some in days, and the disease itself keeps one of them.

The remaining clocks — digestedness and season — are important enough that the chapter gives each its own section, and so shall we (the body’s all-clear, and the dosha’s timetable below). The verse Ci30#308 then adds the physician’s own clock — “observing frequently the condition of disease and the diseased, one does not get confused in treatment” — and seals the six-clock doctrine with an agricultural simile the whole chapter loves: treatment applied without considering these factors of time “may be harmful, like untimely rains for the crop.” Rain is not good or bad; rain is well-timed or ruinous. So, says Charaka, is medicine.

The Ten Aushadha Sevana Kala (Ci30#298–300)

Now the centrepiece. In verses Ci30#298–300, the text lays out the ten-fold times of administration of the drug — the list the later handbooks of dravyaguna teach as the dasha aushadha sevana kala, and one of the most quietly practical inventions in the classical literature:

Notice, first, the symmetry: the three anchor positions — before, during, after the meal — are each counted twice, once for day and once for night, because in this system a morning fast and an evening fast are not the same physiological country. That yields six; the remaining four are the wilder, subtler instruments. Muhurmuhu, “again and again,” abandons scheduling altogether for continuous presence. The samudga — the word names a hinged casket whose two shells meet — brackets the meal from both sides with a split dose. Sabhakta hides the medicine inside the food itself. And the tenth — between morsels — is the finest brush in the case: the measure introduced into the very act of eating, mouthful by mouthful.

Notice, second, what the list assumes: that the meal is the clock. Not the sundial, not the water-clock, not an abstract hour — the ten times are all positions relative to eating, because in this physiology the act of digestion is the central event of the body’s day, the fire around which everything else is scheduled. Readers of our five pittas close reading will remember why: the belly’s fire is, in the tradition’s own verse, the body’s life. Medicine is timed to the fire the way sailors time to the tide.

The meal as the clock — every one of the ten classical times is a position relative to eating: before, amid, after, bracketing, threaded between morsels

Timing by the Five Vayus: Apana, Samana, Vyana, Udana, Prana

Ten instruments — but which to choose? The chapter’s answer (Ci30#301–303) is the most elegant stroke in these pages: match the time of the dose to the territory of the deranged vayu. The five vayus — the five functional winds of classical physiology, each governing one province of movement — each keep a different quarter of the body; and the meal-relative clock, read cleverly, can deliver medicine to each quarter in turn:

Read the last row twice, because it is the doctrine at its most exact: for the wind that governs swallowing, the medicine is given inside the act of swallowing — morsel, medicine, morsel — so that every repetition of Prana’s own movement carries the measure to Prana’s own door. The delivery system is the patient’s ordinary physiology, observed closely enough to be used as a vehicle.

The same verses append two special cases that ride outside the table: in states of laboured breathing, cough and thirst — the classical indications the text names — the drug is administered frequently, the muhurmuhu time, because a symptom continuously present calls for a measure continuously present; and in hiccup, the text directs the measure be given mixed with various delicious food items — the sabhakta time, delivered as ordinary, pleasant eating, where a formal dose would be interrupted by the very spasm it addresses. (These are the text’s clinical illustrations, quoted as scholarship — not suggestions; the choosing of times belongs to physicians.)

For the five winds themselves — their provinces, their classical descriptions, their place in the wider dosha doctrine — see our dedicated guide to the five pranas/vayus, and the Bhavaprakasha’s five-vayu tabulation in its Dosha Prakarana — today’s table is that doctrine put to work at the bedside.

Air made visible — the five vayus are the body’s winds, and the ten-fold clock is read against their provinces: the fasting dose for the lowest, the between-morsels dose for the breath’s own gate

Jirna Lakshana: The Body’s All-Clear Before the Next Dose

When may the next dose be taken? Not at an hour, says the chapter — at a signal. Verse Ci30#305 lists the symptoms of digestedness of the ingested drug: “appetite and the passing of urges, lightness and a sense of well-being.” Hunger returns; the body’s natural movements resume their ordinary course; the frame feels light; the mood clears. Four homely signs — and together they are the body’s own certificate that the previous dose has been processed and cleared.

Then the rule, stated with the force of law (Ci30#306): “The drug should only be taken again when the above symptoms of digestedness of the previously ingested dose appear. Otherwise the drug will have harmful effects.” A second dose stacked on an unfinished first is not double medicine; it is a new burden delivered to a workshop still occupied, and the text does not hedge about the result.

Two things deserve admiration here. First, the feedback principle: the interval between doses is not fixed by the prescription but read from the patient, dose by dose — a responsive loop, not a timetable. Second, the choice of signals: all four are ordinary, felt, reportable states — no instrument, no specialist required to read them. The chapter that began by demanding six clocks ends the dosing question by handing the most important clock to the patient’s own body.

Kalaveksha: The Dosha’s Own Timetable

Verse Ci30#309 names the discipline that runs beneath all of this: kalaveksha, timely observation — “the observation of the specific features of diseases corresponding to season, day and night, age and meal.” The doshas, in the classical doctrine, are not constants; they swell and subside on four nested wheels, and the text tabulates all four (Ci30#310–312):

Read down the columns and each dosha acquires a biography: kapha the principle of beginnings — morning, springtime, childhood, the full stomach; pitta the principle of the meridian — noon and midnight, autumn, the prime of life, the busy middle of digestion; vata the principle of endings — dusk and the small hours, the rains, old age, the emptied stomach. The four wheels turn inside one another like the gears of an orrery, and the physician’s art of timing is the reading of their alignment: the same hour of the same day sits differently in a child in spring and an elder in the rains.

This table is the Samhita’s version of a doctrine the whole tradition shares — readers will find Vagbhata’s daily dosha clock and its practical uses in our prakriti and dosha-clock guide, and the seasonal wheel worked out month by month in the ritucharya guide. What Ci30 adds is the purpose: these wheels are consulted not for daily routine but for the placing of medicine — the season verse (Ci30#307) says exactly this, deferring to the regimen chapters for detail while claiming the principle for dosing. And the stage-of-digestion row explains, from the inside, why the ten timings work at all: a dose before food arrives in vata’s hour of the stomach; a dose mid-meal lands in pitta’s; a dose just after, in kapha’s. The meal is a miniature day.

Matra: Little Water on a Flagrant Fire

Timing settled, the chapter turns to measure — and produces the two most quotable similes in the whole discussion of dosage. Of the insufficient dose (Ci30#313): it “proves ineffective to the disorder, like little water to a flagrant fire.” A cup thrown at a blaze does not half-extinguish it; it vanishes into steam and the fire burns on. An under-dose is not a small success. It is a failure that spends the drug, tires the patient and teaches the disorder nothing.

Of the excessive dose (Ci30#314): it “becomes harmful, like excessive water for the crop.” The field needs rain; the flood that drowns it is not generosity but ruin. Hence the rule between the similes: “keeping in mind the severity of the disorder and the potency of the drug, the drug should be administered in neither too large nor too small a dose.” Two dials — how fierce the fire, how strong the water — set the measure between two failures.

It is characteristic of this text that both similes are agricultural and domestic — fire on the hearth, water on the field. The art of matra is presented not as arcane calculation but as the kind of judgement every farmer and every cook already exercises: enough, at the right moment, for this field, this flame. The chapter began with untimely rains; it will end with a painter. Its images of the physician are all images of craft.

The two failures of measure — a cup of water on a flagrant fire achieves nothing; a flood on the crop is ruin. The right dose lives between the similes

Satmya: Habit as Half the Prescription

Then a rule that could only come from a tradition that watched real households eat: satmya, suitability-through-habituation. Verse Ci30#315: “The item which is suitable for the place and the inhabitants due to habitual use should not be totally avoided, even if unwholesome” — for abrupt abandonment of the accustomed does not do good. The body is a creature of its history. What it has eaten for thirty years it has learned to receive; and the physician who strikes a lifelong staple from the diet in one gesture may do more violence than the staple ever did.

The doctrine cuts the other way too, and the text says so in its benefits verse (Ci30#319): for a patient, the drug should be administered along with the items suitable to them, because “the suitable thing provides strength quickly and does not harm even if taken plentifully.” Habit is not merely tolerated; it is harnessed — the accustomed food becomes the vehicle on which the unaccustomed medicine rides safely in. Suitability, in this chapter, is a clinical instrument with two edges: respected in what you withdraw, exploited in what you deliver.

Satmya is also the doctrine’s bridge from the individual to the region — because the deepest habits are not personal but collective, laid down by soil, climate and generations of kitchens. Which brings the text to one of the most remarkable passages in the classical literature: the food-map of the subcontinent.

The Foods of India’s Peoples: Charaka’s Ethno-Geography

Verses Ci30#316–318 preserve a document historians read with as much interest as physicians: a table of the peoples known to the Samhita’s world and the foods to which each is especially suited by generations of habit. As our source presents it:

We quote the table whole, as intellectual history — a snapshot of the subcontinent’s kitchens some two thousand years ago, from the wine and wheat of the caravan peoples to the gruel of the south and the barley-and-milk heartland. (Our own kitchen, for the record, is entirely vegetarian; the table is the text’s, not a menu.) The clinical instruction that rides on it (Ci30#319–320) we have already met: give the drug along with what the patient’s people are suited to, for the suitable strengthens quickly and forgives quantity. And then the warning to the physician who skips this homework: “the physician ignorant of place and the rest, prescribing treatment only with formulations, fails — because there are so many variations in respect of age, strength and body” (Ci30#320). The formula-book physician fails not because the formulas are wrong but because patients are from somewhere.

A subcontinent on one table — barley and wheat of the heartland, milk of Sindhu, the churned drink of the north-west, tubers and fruits of Malaya, gruel of the south

Viparita Chikitsa: When Hot Is Answered with Hot

The chapter’s standard logic is opposition — the measure contrary to dosha, dushya and nidana. But its most sophisticated page (Ci30#321–325) is a catalogue of the exceptions: cases where the apparently same quality is applied, and works, because the geometry of the body makes the contrary route unreachable. “Sometimes even contrary therapy is applied, in cases of doshas moving inside joints and located deeply” (Ci30#321).

The text’s two demonstrations are little masterclasses in indirection. A hot principle lodged deep within is drawn out by hot measures — fomentation, sprinkling, poultices — the warmth at the surface inviting the buried heat outward, where it disperses: thus hot is pacified by hot. And cold sprinklings applied at the surface drive the body’s heat inward, where it overwhelms a cold principle hidden in the interior: thus cold is overcome with cold (Ci30#321–322). In both cases the opposition still happens — but at the point of contact between dosha and measure, not at the point of application. The physician plays the cushion shot.

Then, as if enjoying itself, the text piles up paradoxes from the dispensary (Ci30#323–325): sandalwood — the tradition’s byword for coolness — causes burning when ground very fine and applied as a thick paste, because the sealed layer traps the skin’s own heat; aguru — a warming wood — cools when its paste is thin and coarse, breathing freely; the excrement of the fly checks vomiting, though the fly itself provokes it; and cooking an item changes its action altogether. Every example defends one thesis: qualities are not fates. Preparation, thickness, route, depth and circumstance bend a substance’s effect — sometimes into its opposite. Hence the summary rule (Ci30#326): the wise physician proceeds after examining carefully, and not simply with drug formulations.

Examine Ten Things, Not Just the Formula

That summary rule names a number: the physician should proceed “after examining the ten entities such as dosha, drug and the rest” (Ci30#326). The ten-fold examination is one of the Samhita’s recurring disciplines — the structured survey of everything that bears on a case: the derangement, the pathogenic field, the cause, the patient’s constitution, strength and age, the place, the time, the drug and its potency, the dose. The details are developed in the Samhita’s diagnostic chapters; what Ci30 contributes is the position of the list — between the physician and the pharmacopoeia. The formula is the last thing consulted, not the first.

It is the same doctrine we met at the chapter’s door — dosha, dushya, nidana — now widened to a full pre-flight check. And it is the sentence to remember whenever classical Ayurveda is caricatured as a recipe collection: its own summary chapter says, in as many words, that recipes without examination are how physicians fail.

The Fire That Remains Minutely: The Convalescence Rules

Near its end the chapter turns to the most easily neglected hour of care: after. Verses Ci30#327–328 give the doctrine of continued support: when the body is emaciated by an illness now departed, “the disease, even departed, comes again by a slight cause — like fire remaining minutely.” An ember the size of a spark, left in the ash, needs only a breath of wind. Hence, says the text, one should continue the use of a harmless supportive measure during convalescence, “for the success of the drug administered earlier, even if it be a tried remedy.” Recovery is not complete when the symptoms leave; it is complete when the ground no longer holds an ember.

The companion verses (Ci30#329–330) handle the stubborn tail of a mild disorder: when trouble persists even on wholesome regimens, the physician’s move is not to abandon the plan but to increase the dose or extend the duration of the same suitable measure — the disorder made “soft or limited” by patient continuation rather than by dramatic change. Between them, the two rules sketch a whole temperament of care: unhurried, continuous, respectful of the body’s slow bookkeeping. It is the temperament the tradition’s rasayana culture institutionalised — the long, gentle, food-adjacent preparations meant for the weeks when strength is being rebuilt; readers will find that doctrine’s great chapter read closely in our rasayana guide.

Ruchi: The Palatability Doctrine

And then — wonderfully — the chapter legislates about taste. If the patient, through long repetition or plain unpalatability, develops aversion to the wholesome diet, the text does not scold the patient. It instructs the kitchen (Ci30#331): the diet “should be made delicious again by processing it with various methods of preparation.” Re-season it, re-form it, cook it another way — the wholesome has a duty to be eatable.

The reasoning verse (Ci30#332) is the chapter’s quiet jewel: “Due to the favourableness of the sense object — the taste of food — one attains satisfaction, energy, relish, strength and happiness; and consequently, loss of severity of disease.” Palatability is not indulgence; it is a clinical force. A meal received with relish nourishes twice — once by its substance, once by the gladness of its receiving. (The following verse, Ci30#333, adds the converse craft: even a craving born of morbidity is to be managed with wholesome diet processed with drugs if necessary — the kitchen again as the dispensary’s front room.) The tradition’s six-taste theory of the complete meal — the thali as a balanced sentence of flavours — is this doctrine’s daily architecture; we have read it closely in the shadrasa guide, and its cautionary twin — the combinations the texts advise against — in the viruddha ahara close reading.

“It should be made delicious again” — the wholesome, says Ci30#331, has a duty to be eatable; relish itself is counted among the forces of recovery

The Blind Artist: Charaka’s Closing Verse

The chapter — and with it the whole Chikitsa Sthana — closes on a single image (Ci30#340): “The physician who is not well conversant with the treatise and its contents cannot perform the therapeutic functions, as the blind artist cannot make the painting.”

Consider what the simile claims. Not that the unlearned physician is like a person without paints, or without a canvas — the tools, the drugs, the formulas may all be to hand. The lack is sight: the trained perception that sees which of the six clocks is striking, which of the ten times fits, which wind has strayed into which province, how fierce the fire and how strong the water. Everything this chapter has taught is, in the end, a way of seeing; and a pharmacopoeia in the hands of someone who cannot see the patient is pigment in the dark.

It is the perfect final verse for a section that began by promising the “essence of the treatise.” The essence, it turns out, is not a formula at all. It is the formed judgement of the physician — the eye that the whole treatise exists to open.

The Old Clock in a Modern Ayurvedic Home

Set the scholarship down and look at an ordinary traditional household, and you can still see the ten-fold clock’s gentlest shadows — not as medicine, but as rhythm. The day still opens, in many homes, with something taken warm before the first meal, in the old pratah spirit. The kitchen still knows the art of Ci30#331 — making the wholesome delicious — and the habit of the warm cup returned to through the day. The evening still keeps its small toilette, oils and preparations given their unhurried hour before rest, in the same spirit the dinacharya chapters give the morning its sequence (we read that doctrine in the dinacharya guide). None of this is dosing, and none of it needs to be: what survives is the older and larger idea beneath the doctrine — that a day has a shape, that the meal is its centre, and that what we take and apply sits best inside that shape rather than against it.

In that spirit — of rhythm and tradition, with no clinical pretence whatsoever — a few of our everyday staples keep the old hours:

That is the honest whole of it: a morning spoon, a warm cup, an evening oil — small, steady comforts keeping old hours inside a well-kept day. The doctrine belongs to the scholars and the physicians; the rhythm belongs to anyone.

What This Article Is Not

Because this chapter concerns the timing of medicines, one boundary deserves stating twice. This article is a work of textual scholarship: a close reading of Chikitsa Sthana 30 as a monument of intellectual history. It is not medical advice, and the ten timings, the vayu table, the dose similes and every other doctrine quoted here are descriptions of how classical physicians reasoned — not instructions for readers. In the text’s own doctrine, these decisions belong exclusively to the trained physician who has examined the particular patient; that is the entire point of its closing verse. If you take any medicine — modern or traditional — its timing, dose and duration are matters for your own doctor or qualified practitioner, and for no one else; and any ongoing symptom deserves a professional’s attention, not a schedule from an ancient book, however beautiful. The classical conditions named in passing (jvara and the rest) appear solely as subjects of ancient scholarly discussion.

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