Transcript Slide 1
Changing Face of Homoeopathic Pharmacy Lecture by Dr. P. N. Varma Changing face of Homoeopathic Pharmacy The basis of homoeopathic medicine is Experimental Pharmacology (Proving as known in homoeopathy). This essentially calls for that the raw material should be one used in the proving Standards are fixed to ensure that the aim of original drug is achieved It takes into consideration. a) Organon aphorisms 264 to 287 b) The availability of situation c) Pharmaceutical aspects of preparation without losing the original medicinal power Organon aphorisms 264 – 287 further elaborate the aim Genuineness, authenticity and standard quality (unimpaired strength) § 264 – 265 The product should be in natural & crude state § 266 Prepared as per methods of… (homoeopathic pharmacopoeial technique) § 267 Used in dose sufficient to initiate the drug action § 283 Material quantity MT and minor variation is of no significance (provided not used for pharmacological effects) § 284 Dilution or potentisation increases effect § 286-287 Standard products… In other words standard products, in natural form, in its totality, in dose to initiate mechanism of cure by qualitative action mainly in “dose” which does not have side effects. Methods for testing the products for their purity and absence of impurity form the basis of pharmacopoeia. Pharmacopoeias Dr. Caspari (1825) and Dr. Willmar Schwabe (1872) did leave pharmacopoeias but it was AHP 1897 which seriously dealt with individual drugs, its identification & preparation . HPUS 1941 was taken up by the FDA Act 1938 (In India Drugs were controlled in 1940). HPI came in 1971 with methods of preparation and 180 monographs of drugs. With this the homoeopathic pharmacy shifted from “art” to “science”. Legal aspects of homoeopathy in India Homoeopathy in India comes under Drugs and Cosmetics Act. It recognises the following pharmacopoeias: 1. Homoeopathic Pharmacopoeia of India (HPI) 2. British Homoeopathic Pharmacopoeia (BHP) 3. Homoeopathic Pharmacopoeia of United States (HPUS) 4. German Homoeopathic Pharmacopoeia (GHP) French homoeopathic pharmacopoeia is not recognised, but it has valuable information on nosodes and organotherapies (sarcodes) The Drugs and Cosmetics Rules 1945 “Homoeopathic medicines” include any drug which is recorded in Homoeopathic provings or therapeutic efficacy of which has been established through long clinical experience as recorded in authoritative Homoeopathic literature of India and abroad and which is prepared according to the techniques of homoeopathic pharmacy and covers combination of ingredients of such Homoeopathic medicines but does not include a medicine which is administered by parenteral route. Sources of homoeopathic drugs Earlier Now Plant sources Allersodes Animal sources Minerals Nosodes Sarcodes Imponderabilia Isodes (tautopathic medicines can be classified along with isodes as the method of preparation is same) Sources… Sarcodes Properly identified healthy organs or tissues Needs healthy certificate & genuinity by experts before a drug is made (legal need) Imponder- No more vague. In revision series of HPUS abilia like for X-Rays. 1 liter or 1 kg is exposed to 1000 X-Ras rads to make basic material for use. It is then diluted as 1/100 and product is equalant to 2x Nosodes – methods of preparation N1 for the lysate of bacteria producing endotoxins (e.g.. Typhoid, paratyphoid, e.coli) N2 for bacteria producing exotoxins (e.g.. diphtheria) N3 for pure organisms (e.g. tuberculinum pure culture) N4 for preparations bacillinum) from tissues (e.g. psorinum, Gradual enforcement of Act & Rules Homoeopathic medicines were defined in Drug Rules (Rule 2 dd) 1969 Homoeopathic pharmacopoeia covered in the second schedule of the act 1978 Homoeopathic drug proving (HPI Volume 1) 1. Controlled experiment 2. On relatively healthy volunteers 3. Substances should be prepared as per general methodology mentioned in the pharmacopoeia 4. Experiments should be in varying doses to produce the data called ‘proving’ 5. On the scheme and pattern to constitute Materia Medica Provings are the basis of Materia Medica 6. Experiments should be carried only to extent of causing gross temporary reversible alterations and sense perceptible objective signs. Unique characteristics of homoeopathic drug standards 1. The raw material should be same as used in the proving. 2. Method of preparation should be one adopted by the prover. This in turn means: 1. Go for the correct species, adopt microscopic / histopathological studies. 2. Fix the percentage of active & limits for inactive constituents and aducterants. Process has a bearing on the quality Trituration - particle size 10 micron at 1x level Tincture - fresh or dry plant - size of cut or fineness of the powdered material - percolator packing - percentage of extraction solvent - rate of percolation - time of maceration Supplementary but essential standards Ash values Extractive values Saponification values Reaction (pH) of known strength solution Foreign matters Moulds, fungus, bacterial, pesticide residue TLC Rf values Tincture, odour, taste, colour & dry residue Triturations / tablets Insoluble basic drug materials (1:10 or 1:100) with lactose Triturated by hand or machine. Particle size of the basic drug material in the final decimal or centesimal dilution has to be below 10 µm for 80%; no drug particle should be more than 50 µm. Trituration time: Minimum 1 hour. One third of the lactose is given into the mortar, then the basic material is added; finally the remaining vehicle in two equal portions is added and triturated. Triturations / tablets contd… For tabletting permitted excipients are only starch – concentrated up to 10 percent and magnesium stearate in concentrations up to 2 percent. Granulation if necessary has to be done with saturated lactose solution, starch paste or ethanol. Tablets are single doses containing 250 mg of the trituration. The weight of excipients goes additional. Lowest potencies – legal limits of prescription Name of the drug Legal position Antim. ars. Not below 3x Ars. Alb. Not below 3x Ars. Iod. Not below 3x Ars. Sul. Flv. Not below 2x Ars. Sul. Rub. Not below 2x Baryta carb. Not below 3x Baryta mur. Not below 3x Bufo rana Not below 3x Calcarea ars. Not below 3x Lachesis Not below 6x Lowest potencies – legal limits of prescription contd… All arsenic, barium, mercury and lead – not below 3x All nosodes - not below 6x (3rd potency) for trading, not below 6th potency in practice All snake, viper, spider, toad and insect poisons - not below 3x (exceptions in India – Blatta orientalis Q) Phytochemicals (HCN glyc.) etc. – not below 6x Special storage conditions (up to 3x) Acidum aceticum, nitricum, picrinicum and sulphuricum Hydrastis Iodium Physostigma Rauwolfia Secale cor. Zincum aceticum Apis mellifica Bromine Creasole Gelsemium Stringent storage condition (up to 3x) Arsenic Naja Acid fluric Nitroglycerine (hydrofluric) Merc. Iod. Flv. Atropine sulph Merc. Iod. Rub. Chininum ars. Phosphorus Lachesis Level of testing in homoeopathic drugs Biochemic drugs - up to 6x; up to 12x by plasma Triturations - up to 6x; up to 12x by plasma Mother tinctures - up to 4x; up to 6x by HPLC Mother tinctures - up to 2x in combinations Combination drugs - up to 2x Ointments, hair oils, eye drops, etc. Dilutions - up to 6x Level of testing in homoeopathic drugs Contd… Molecules are present at best up to level 12C or 24x But clinical response is visible even above 24x in • Human being • Animals • Bacteria • Plants Biological response can be demonstrated on polygraph and other sensitive equipments used in experimental pharmacology No. of homoeopathic drugs covered by different materia medica & other literature Materia medica No. of drugs covered Materia Medica Pura – Hahnemann 75 approx. Lectures on Materia Medica – J. T. Kent 206 Encyclopedia of Pure Materia Medica – T. F. Allen 720 Dictionary of Practical Materia Medica – J. H. Clarke 1010 Pocket Manual of 1235 + 200 in footnote Homoeopathic Materia Medica and Repertory – W. Boericke No. of homoeopathic drugs covered by different materia medica & other literature contd… Homoeopathic Pharmacopoeia 845 (total no. of monographs of India is 916, but it has repetition of many drugs in subsequent volumes) Homoeopathic Pharmaceutical 101 Codex, volume 1 Homoeopathic pharmacopoeial list (Govt. of India) 2373 HPI drug documentation file 4400 OLD METHOD – No more used Hahnemannian classification of mother tincture preparation Class Ratio of vehicle Drug strength Drug under the class Class I Juice:alcohol 1:1 1/2 Belladonna Class II Plant:alcohol 3:2 1/2 Thuja Class III Plant:alcohol 1:2 1/6 Scilla Class IV Dry Plant:alcohol 1:5 1/10 Spigelia Class V A Aqueous solution 1:9 1/10 Acid phos Class V B --do– poisonous 1:99 1/100 Hydrocyanic acid Class VI A Alcoholic solutions 1:9 1/10 Chromic acid Class VI B --do– poisonous 1:99 1/100 Arsenicum Class VII Trituration 1:9 1/10 Strychninum ars. Class VIII --do– liquid subs. 1:99 1/100 Petroleum Class IX --do– veg & animal 2:99 2/101 Agaricus New concept: On uniform drug strength… Materia Medica Pura Vol II pg 30 or Chronic Diseases pg 182 : “In order to make alcoholic medicinal substances of uniform strength and to obtain from them determinable dilution follow….” BHP part I pg 11 & 12 : “In every substance the dry crude substance is to be taken as starting point for calculation of strength.” German Homoeopathic Pharmacopoeia Proportion Drug strength I Juice + alcohol 86% 1:1 II A Fresh drug + alcohol 86% 1:2 II B Fresh drug + alcohol 30% III A Fresh drug + alcohol 60% III B Fresh drug + alcohol 73% 1:2 III C Fresh drug + alcohol 43% 1:2 Maceration Method 1:2 1:2 German Homoeopathic Pharmacopoeia Contd… Method Proportion Drug strength IV A Dry drug : alcohol 1:9 1/10 IV B Dry drug (animal products) : alcohol 1:9 1/10 VA Solutions – alcohol, water or glycerol 1/10 or 1/100 1/10 or 1/100 VB Solution aqueous water for injection 1/10 or 1/100 1/10 VI Trituration 1/10 or 1/100 1/10 VII Trituration of MT or MS 1x VIII Liquid from trituration 8x or 4C VIII B Liquid from trituration – in water for injection IX Tablets permitted starch up to 10% calcium bihanate or magnesium stearate 2% German Homoeopathic Pharmacopoeia contd… Method Proportion Drug strength X Granules XI Liquid dilution for injection XII A External application MT (alcohol 30-43%) 1/10 XII B External application MT (alcohol 73%) 1/10 XII C External application MT (alcohol 20%) 1/10 XII D External application MT in oil 60-70°C 4 hours XII FL External application MT in oil under CO2 37°C 7 days Ointments – antioxidants, stabilizers are not permitted XIII B German Homoeopathic Pharmacopoeia contd… Method Preparation XIV Suppositories – antioxidants, stabilizers are not permitted XV Eye drops – Isotonic, sterile, preservatives permitted XVI Mixtures XVII A LM potencies XVII B LM potencies in granules XVIII A,B,C,D,E&F Heat treated liquid tinctures XIX A,B,C,D,E&F Refluxed tinctures XX Refluxing and cooling – Rh MT XXI, XXII, XXIII& XXIV For different set of alcohol % - Rh MT XXV to XXXVIII Spagric MTs – fermented products XXXVII to XXXIX Coated granules XL (40) Potentised mixtures XLI to XLVI Nasal drops, i.v. drops, etc French Homoeopathic Pharmacopoeia Gemmotherapie (extraction in glycerine) – 56 Organotherapie (parts of the body – similar to sarcodes) – 261 Lithotherapie (from crude minerals) - 43 Quotation from HPI Vol II “The old Hanemannian method of preparation has been discarded in favour of a new uniform method with specific drug strength which takes in to consideration the moisture content of the drug, thus eliminating the variation in standards. This method (the new uniform method of preparation of tincture as mentioned in the General Instructions for preparation in Homoeopathic Pharmacopoeia) is applicable to most* of the drugs and has been accepted by the committee”. *A few exceptions have been taken care in the individual monograph GMP There have been amendments to Drug Rules in October 2006 affecting homoeopathic medicines – Good Manufacturing Practices (GMP) GMP Government now differentiates single medicines and formulations It now differentiates indirectly low potencies and high potencies GMP It now requires that the containers should be neutral glass In the manufacturing area no spitting, smoking, chewing, littering, etc. are permitted. GMP A standard operating practices (SOPs) is required for all processes, drugs and material movements. GMP The manufacturer shall use backpotencies procured manufacturers and from the licensed firm shall maintain proper records of purchase or shall prepare own back-potencies with records. GMP Different droppers shall be used for different medicines and different potencies. Potentisation shall be done using Hahnemannian method (change of bottle at each stage of potentisation) GMP In case of formulation the following has been added: Compound formulations shall preferably be in liquid and solid forms and the potency of the ingredients shall be in detectable quantity preferably be in 3x except in case of highly poisonous material and toxins which should not be below 6x. The ingredient shall be compatible to each other. Complete pharmacopoeial name of each ingredient shall be printed on the label along with composition. GMP In case of Laboratory Controls the following the following has been added: Tests as per the pharmacopoeia and requirements shall be carried out on products and materials. The stability of the products shall be established by proper methods. Sterility tests, wherever applicable, shall be carried out. Control samples shall be preserved for not less than three years after the last sales. GMP For the first time expiry date for homoeopathic medicines has been prescribed. Thank you.