Trichophyton
Generic name: Trichophyton mentagrophytes and Trichophyton rubrum
Dosage form: injection for intradermal skin testing
Drug class:In vivo diagnostic biologicals
Medically reviewed by Drugs.com. Last updated on Apr 21, 2022.
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This product is intended for use by physicians who are experienced in the administration of allergenic extracts or for use under the guidance of an allergy specialist. Skin tests should be performed after the patient's physical well being and allergic history have been evaluated. Patients should be instructed to recognize adverse reaction symptoms and cautioned to contact the physician if symptoms occur. As with all allergenic extracts, severe systemic reactions may occur, and in certain individuals these reactions may cause death. Patients should be observed for at least 20 minutes after skin tests have been completed. Emergency measures as well as personnel trained in their use should be immediately available in the event of a life threatening reaction.
This product should never be injected intravenously (see DOSAGE AND ADMINISTRATION). Also, see WARNINGS, PRECAUTIONS, ADVERSE REACTIONS and OVERDOSE Sections below.
Trichophyton Description
Trichophyton extract for diagnostic skin testing is a sterile solution that is prepared by extracting allergenic source material of equal parts of Trichophyton mentagrophytes and Trichophyton rubrum with an aqueous solution of 0.25% sodium chloride, 0.125% sodium bicarbonate and 50% glycerol v/v. Phenol is added at 0.4% w/v as a preservative. Extract for intradermal administration is diluted with the above solution without glycerol.
WEIGHT BY VOLUME (W/V) Weight by volume refers to the weight of raw product added to a measured volume of extraction solution. A 1:500 w/v extract contains 1 gram of source material in 500 mL of solution. The w/v designation refers to concentration rather than potency. Extract labeled w/v has no U.S. Standard of Potency.
Trichophyton - Clinical Pharmacology
In sensitive persons, allergenic extract elicits immediate-type skin reactions consisting of erythema and edema at the test site. This allergic inflammatory response is thought to begin with the reaction of allergen with immunoglobulin E (IgE) on the surface of the mast cell. Thi..
