The effect of ivermectin on some haematological indices in rabbits: Influence of vitamin K treatment

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Abstract

1. Rabbits were treated with the antiparasitic drug ivermectin at subcutaneous doses of 0.2, 1 and 2.5 mg/kg and blood collected weekly for 4 weeks thereafter for measuring some blood parameters. At a dose of 0.2 or 1 mg/kg the drug had no significant effect on any of the parameters measured. At a dose of 2.5 mg/kg, the drug reduced significantly the erythrocyte counts, haemoglobin concentration, haematocrit, mean corpuscular haemoglobin concentration and mean corpuscular haemoglobin on weeks 1, 2, 3 and 4. Platelet counts were not significantly affected. 2. In another trial, ivermectin was injected subcutaneously at a dose of 2.5 mg/kg, after pre-treatment with either saline or vitamin K (30 μg/kg for 30 days), and prothrombin time, bleeding time and platelet counts measured at weekly intervals for 4 weeks. Bleeding time and thrombin time were significantly increased 1 week after treatment, and remained higher than the control for 4 weeks.

Original languageEnglish
Pages (from-to)735-738
Number of pages4
JournalClinical and Experimental Pharmacology and Physiology
Volume17
Issue number10
Publication statusPublished - 1990

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Ivermectin
Bleeding Time
Erythrocyte Indices
Vitamin K
Platelet Count
Rabbits
Thrombin Time
Antiparasitic Agents
Erythrocyte Count
Prothrombin Time
Hematocrit
Pharmaceutical Preparations
Hemoglobins

ASJC Scopus subject areas

  • Physiology
  • Pharmacology (medical)
  • Pharmacology, Toxicology and Pharmaceutics(all)

Cite this

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abstract = "1. Rabbits were treated with the antiparasitic drug ivermectin at subcutaneous doses of 0.2, 1 and 2.5 mg/kg and blood collected weekly for 4 weeks thereafter for measuring some blood parameters. At a dose of 0.2 or 1 mg/kg the drug had no significant effect on any of the parameters measured. At a dose of 2.5 mg/kg, the drug reduced significantly the erythrocyte counts, haemoglobin concentration, haematocrit, mean corpuscular haemoglobin concentration and mean corpuscular haemoglobin on weeks 1, 2, 3 and 4. Platelet counts were not significantly affected. 2. In another trial, ivermectin was injected subcutaneously at a dose of 2.5 mg/kg, after pre-treatment with either saline or vitamin K (30 μg/kg for 30 days), and prothrombin time, bleeding time and platelet counts measured at weekly intervals for 4 weeks. Bleeding time and thrombin time were significantly increased 1 week after treatment, and remained higher than the control for 4 weeks.",
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AU - Ali, B. H.

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N2 - 1. Rabbits were treated with the antiparasitic drug ivermectin at subcutaneous doses of 0.2, 1 and 2.5 mg/kg and blood collected weekly for 4 weeks thereafter for measuring some blood parameters. At a dose of 0.2 or 1 mg/kg the drug had no significant effect on any of the parameters measured. At a dose of 2.5 mg/kg, the drug reduced significantly the erythrocyte counts, haemoglobin concentration, haematocrit, mean corpuscular haemoglobin concentration and mean corpuscular haemoglobin on weeks 1, 2, 3 and 4. Platelet counts were not significantly affected. 2. In another trial, ivermectin was injected subcutaneously at a dose of 2.5 mg/kg, after pre-treatment with either saline or vitamin K (30 μg/kg for 30 days), and prothrombin time, bleeding time and platelet counts measured at weekly intervals for 4 weeks. Bleeding time and thrombin time were significantly increased 1 week after treatment, and remained higher than the control for 4 weeks.

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