US3584126A - Anthelmintic method employing phosphonate derivative - Google Patents
Anthelmintic method employing phosphonate derivative Download PDFInfo
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- US3584126A US3584126A US722531A US3584126DA US3584126A US 3584126 A US3584126 A US 3584126A US 722531 A US722531 A US 722531A US 3584126D A US3584126D A US 3584126DA US 3584126 A US3584126 A US 3584126A
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- US
- United States
- Prior art keywords
- butonate
- anthelmintic
- method employing
- phosphonate derivative
- trichloro
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000000034 method Methods 0.000 title abstract description 15
- 230000000507 anthelmentic effect Effects 0.000 title abstract description 8
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical class OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 title description 2
- 241000124008 Mammalia Species 0.000 abstract description 8
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 244000000013 helminth Species 0.000 abstract description 4
- 231100001225 mammalian toxicity Toxicity 0.000 abstract description 3
- 229940124339 anthelmintic agent Drugs 0.000 abstract description 2
- 239000000921 anthelmintic agent Substances 0.000 abstract description 2
- BKAQXYNWONVOAX-UHFFFAOYSA-N Butonate Chemical compound CCCC(=O)OC(C(Cl)(Cl)Cl)P(=O)(OC)OC BKAQXYNWONVOAX-UHFFFAOYSA-N 0.000 description 18
- 229950010691 butonate Drugs 0.000 description 17
- 241001465754 Metazoa Species 0.000 description 9
- 244000079386 endoparasite Species 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000002775 capsule Substances 0.000 description 5
- 239000008187 granular material Substances 0.000 description 5
- 241001147657 Ancylostoma Species 0.000 description 4
- 241000282472 Canis lupus familiaris Species 0.000 description 4
- 229920002261 Corn starch Polymers 0.000 description 4
- 239000008120 corn starch Substances 0.000 description 4
- 239000002552 dosage form Substances 0.000 description 4
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 4
- 241000282465 Canis Species 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 241000244031 Toxocara Species 0.000 description 3
- 241001489151 Trichuris Species 0.000 description 3
- 210000001035 gastrointestinal tract Anatomy 0.000 description 3
- 230000002459 sustained effect Effects 0.000 description 3
- 235000019739 Dicalciumphosphate Nutrition 0.000 description 2
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 2
- 241000700159 Rattus Species 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000001506 calcium phosphate Substances 0.000 description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 2
- 235000013539 calcium stearate Nutrition 0.000 description 2
- 239000008116 calcium stearate Substances 0.000 description 2
- NEFBYIFKOOEVPA-UHFFFAOYSA-K dicalcium phosphate Chemical compound [Ca+2].[Ca+2].[O-]P([O-])([O-])=O NEFBYIFKOOEVPA-UHFFFAOYSA-K 0.000 description 2
- 229940038472 dicalcium phosphate Drugs 0.000 description 2
- 229910000390 dicalcium phosphate Inorganic materials 0.000 description 2
- 239000003937 drug carrier Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 239000008101 lactose Substances 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 description 2
- 230000000069 prophylactic effect Effects 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229920002907 Guar gum Polymers 0.000 description 1
- 241000244206 Nematoda Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 241001638368 Trichuris vulpis Species 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 231100000215 acute (single dose) toxicity testing Toxicity 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- GXGAKHNRMVGRPK-UHFFFAOYSA-N dimagnesium;dioxido-bis[[oxido(oxo)silyl]oxy]silane Chemical compound [Mg+2].[Mg+2].[O-][Si](=O)O[Si]([O-])([O-])O[Si]([O-])=O GXGAKHNRMVGRPK-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002550 fecal effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000665 guar gum Substances 0.000 description 1
- 229960002154 guar gum Drugs 0.000 description 1
- 235000010417 guar gum Nutrition 0.000 description 1
- 239000008141 laxative Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 229940099273 magnesium trisilicate Drugs 0.000 description 1
- 229910000386 magnesium trisilicate Inorganic materials 0.000 description 1
- 235000019793 magnesium trisilicate Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 230000000590 parasiticidal effect Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- -1 phosphonate compound Chemical class 0.000 description 1
- 229920006316 polyvinylpyrrolidine Polymers 0.000 description 1
- 230000001543 purgative effect Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000012453 sprague-dawley rat model Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000003826 tablet Substances 0.000 description 1
- 238000011287 therapeutic dose Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
- C07F9/40—Esters thereof
Definitions
- Butonate has been shown to be highly effective in eliminating helminths common to canines, having an average endoparasite elimination in the order of 90-96% against the following: Ancylostoma canium, T oxocara canis, and Trichuris vulpis.
- This invention relates to a method of treating warmblooded mammals infected with endoparasitic helminths, and specifically to the use of dimethyl-2,2,2-trichloro-1- n-butyryloxyethylphosphonate, hereafter butonate, Casida et al. (US. Pat. 2,911,435).
- This compound having low mammalian toxicity, has been discovered to possess highly effective anthelrnintic properties.
- this invention relates to a method of treating mammals, infected with endoparasites, with butonate in a pharmaceutically acceptable sustained action dosage form.
- the compound of this invention has satisfied all the above mentioned criteria.
- the oral LD is about 1000-1600 mg./kg.
- Large oral doses are Ancylostoma Toxocara Trichuris Expd., Expd., Expd., Expd. Left percent Expd. Left percent Expd Left percent GROUP EVALUATION Average Nematode Harbor percent Animals range average expelled cleared .Ancylostorna 1-124 11 94.1 16/17 T0xoeara l-70 14 97.
- the required, effective dose of butonate can be incorporated in the animals feed in the form of tablets, capsules, pellets, or the like, along with inert, pharmaceutically acceptable carriers.
- the following carrier materials may be used: lactose, starch, mganesium stearate and the like.
- the same may be used with or without such other materials as corn starch, corn starch (paste), dicalcium phosphate and calcium stearate.
- composition having the following content:
- the presently preferred method is to include the dosage in a capsule and administer orally.
- Butonate can be incorporated into a suitable sustained action dosage form which prolongs its effectiveness in the digestive tract of the host animal.
- a preferred method of preparing a suitable sustained dosage form is illustrated in the composition having the following content:
- a prolonged-acting anthelmintic such as butonate can be used in the treatment of warm-blooded mammals infected with endoparasites with a high degree of success.
- the dose would be determined on the basis of the degree of existing infection as well as the type of mammal being treated. Having eliminated the existing endoparasites from the host animal, butonate can also be used as a prophylactic, the dose being less than treatment of an infected animal, for example, 1-50 mg./kg./day; the dose, however, would again depend on the size and species of the mammal being treated.
- a method of treating dogs internally infected with ancylostoma, toxocara and trichuris nematode worms comprising the step of orally administering an effective amount of a composition comprising dimethy1-2,2,2-trichloro-1-n-butyryloxyethylphosphonate and pharmaceutically acceptable carrier therefor.
- a method of treating dogs comprising orally administering an etfective amount of dimethyl-2,2,Z-trichloro- 1-n-butyryloxyethylphosphate as a prophylactic against ancylostoma, toxocara and trichuris nematode worms.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
THIS DISCLOSURE DESCRIBES A METHOD TO OF TREATING WARMBLOODED MAMMALS INFECTED WITH ENDOPARASITIC HELMINTHS WITH A HIGH EFFECTIVE ANTHELMINTIC, DIMETHYL-2,2,2-TRICHLORO-1-N-BUTYRYLOXYETHYLPHOSPHATE, HAVING LOW MAMMALIAN TOXICITY. THE SUPERIORITY OF THE COMPOUND COMPARED TO KNOWN ORGANOPHOSPHONATE ANTHELMINTICS IS EFFECTIVELY DEMONSTRATED.
Description
United States Patent Office 3,584,126 Patented June 8, 1971 3,584,126 ANTHELMINTIC METHOD EMPLOYING PHOSPHONATE DERIVATIVE Jack Greenberg, Richmond, Va., assignor to A. H. Robins Company, Incorporated, Richmond, Va. No Drawing. Filed Apr. 18, 1968, Ser. No. 722,531 Int. Cl. A61k 27/00 US. Cl. 424-212 3 Claims ABSTRACT OF THE DISCLOSURE This disclosure describes a method of treating warmblooded mammals infected with endoparasitic helminths with a highly effective anthelmintic, dimethyl-2,2,2-trichloro-l-n-butyryloxyethylphosphate, having low mammalian toxicity. The superiority of this compound compared to known organophosphonate anthelmintics is effectively demonstrated.
largely eliminated from the tissues of rats in a few days, (ref. Technical Brochure, Prentiss Drug and Chemical Co., Inc.). For example, 50-1500 mg./kg./day by oral administration, are effective, depending on the host animal and the extent of infection. Canines administered a single therapeutic dose of butonate in the range of about 200- 800 mg./kg. did not display intolerable side effects; the anthelmintic effect was excellent.
Butonate has been shown to be highly effective in eliminating helminths common to canines, having an average endoparasite elimination in the order of 90-96% against the following: Ancylostoma canium, T oxocara canis, and Trichuris vulpis.
The following table indicates the high degree of anthelmintic effectiveness in dogs in a single does of about 200 mg./kg. of butonate. Butonate was administered orally in capsule form at the time of feeding. No fasting or purgatives were employed. The dogs were necropised at 72 hours and fecal counts were made.
INDIVID UAL TESTIN G This invention relates to a method of treating warmblooded mammals infected with endoparasitic helminths, and specifically to the use of dimethyl-2,2,2-trichloro-1- n-butyryloxyethylphosphonate, hereafter butonate, Casida et al. (US. Pat. 2,911,435). This compound, having low mammalian toxicity, has been discovered to possess highly effective anthelrnintic properties. Moreover, this invention relates to a method of treating mammals, infected with endoparasites, with butonate in a pharmaceutically acceptable sustained action dosage form.
In the treatment of mammals infected with endoparasites, several vital criteria must be achieved, including low toxicity in the host animal, toxicidal activity against the endoparasites therein and chemical stability in the digestive tract of the host animal. For example, other, organophosphates have been known to 'be parasiticidal, but have been ineffective by oral application due to their tendency to be readily hydrolyzed in the digestive tract of the host animal.
The compound of this invention, butonate, has satisfied all the above mentioned criteria. In acute toxicity studies in adult white rats of the Sprague-Dawley strain, the oral LD is about 1000-1600 mg./kg. Large oral doses are Ancylostoma Toxocara Trichuris Expd., Expd., Expd., Expd. Left percent Expd. Left percent Expd Left percent GROUP EVALUATION Average Nematode Harbor percent Animals range average expelled cleared .Ancylostorna 1-124 11 94.1 16/17 T0xoeara l-70 14 97. 2 10/13 T1'1chur1s 1-29 10 95.1 12/13 The required, effective dose of butonate can be incorporated in the animals feed in the form of tablets, capsules, pellets, or the like, along with inert, pharmaceutically acceptable carriers. For example, for encapsulation, the following carrier materials may be used: lactose, starch, mganesium stearate and the like. For tableting, the same may be used with or without such other materials as corn starch, corn starch (paste), dicalcium phosphate and calcium stearate.
A preferred method of preparing a suitable encapsulated dosage form is illustrated in the composition having the following content:
Mg./capsule (1) Butonate 100.00 (2) Dicalcium phosphate 100.00 (3) Lactose 98.00 (4) Corn starch 98.00 (5) Magnesium stearate 4.00
Procedure following content:
Mgs. per tablet (1) Butonate 100.00 (2) Magnesium trisilicate 100.00 (3) Corn starch 20.00 (4) Polyvinylpyrrolidine 10.00 (5) Guar gum 10.00 (6) Calcium stearate 2.50
Procedure Deposit #1 and #2 by gradually adding #1 dissolved in 100 ml. methylene chloride to #2 while mixing gently using a sigma mixer. When #1 and #2 are thoroughly mixed, pass the moist mass through an oscillating granulator using a #10 mesh screen. Allow the granules to air dry overnight. The granules are then blended with #3 and this mixture is granulated with a solution of #4 in 95% alcohol. The wet mass is passed through an oscillating granulator using a #14 screen. The Wet granules are dried in a fluid bed drier. The dried granules are blended with #5 and #6. The mixture is then tableted using a suitable tablet press.
The presently preferred method is to include the dosage in a capsule and administer orally.
Butonate can be incorporated into a suitable sustained action dosage form which prolongs its effectiveness in the digestive tract of the host animal. A preferred method of preparing a suitable sustained dosage form is illustrated in the composition having the following content:
Parts by wt.
(1) Stearyl alcohol 140 (2) Pyrogenic colloidal silica 60 (3) Butonate 100 33.3% Butonate by weight.
Procedure Stearyl alcohol is heated to about followed by addition of pyrogenic colloidal silica and butonate. The reagents are intimately mixed to disperse and then cooled. After the mixture congeals, the mass is broken up by passing through an oscillating granulator equipped with a #8 mesh screen. The resulting granules, being 33.3% by weight of the active ingredient butonate, are incorporated into capsules for convenient administration.
Thus, a prolonged-acting anthelmintic such as butonate can be used in the treatment of warm-blooded mammals infected with endoparasites with a high degree of success. The dose would be determined on the basis of the degree of existing infection as well as the type of mammal being treated. Having eliminated the existing endoparasites from the host animal, butonate can also be used as a prophylactic, the dose being less than treatment of an infected animal, for example, 1-50 mg./kg./day; the dose, however, would again depend on the size and species of the mammal being treated.
From the foregoing description, one skilled in the art can easily ascertain the essential characteristics of this invention, and without departing from the spirit and scope thereof, can make various changes and modifications of the invention to adapt to various usages and conditions. Consequently, such changes and modifications are properly, equitably, and intended to be, within the full range of equivalence of the following claims.
What is claimed is:
1. A method of treating dogs internally infected with ancylostoma, toxocara and trichuris nematode worms comprising the step of orally administering an effective amount of a composition comprising dimethy1-2,2,2-trichloro-1-n-butyryloxyethylphosphonate and pharmaceutically acceptable carrier therefor.
2. A method as defined in claim 1 wherein said phosphonate compound is administered in an amount ranging from -1500 mg./kg./day.
3. A method of treating dogs comprising orally administering an etfective amount of dimethyl-2,2,Z-trichloro- 1-n-butyryloxyethylphosphate as a prophylactic against ancylostoma, toxocara and trichuris nematode worms.
Knowles et al.-I. of Agriculture & Food Chemistryvol. 14l966, pp. 566-572.
DrumondChem. Abst., vol. 611964-p. 12571g.
SAM ROSEN, Primary Examiner
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US72253168A | 1968-04-18 | 1968-04-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3584126A true US3584126A (en) | 1971-06-08 |
Family
ID=24902240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US722531A Expired - Lifetime US3584126A (en) | 1968-04-18 | 1968-04-18 | Anthelmintic method employing phosphonate derivative |
Country Status (1)
Country | Link |
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US (1) | US3584126A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4098885A (en) * | 1977-10-14 | 1978-07-04 | Zoecon Corporation | Equine anthelmintic |
-
1968
- 1968-04-18 US US722531A patent/US3584126A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4098885A (en) * | 1977-10-14 | 1978-07-04 | Zoecon Corporation | Equine anthelmintic |
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