Tacalcitol

Author: Prof. Dr. med. Peter Altmeyer

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Last updated on: 29.10.2020

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Definition
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Vitamin D3 analogue.

Pharmacodynamics (Effect)
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Transformation in the skin by UV light into cholecalciferol, then in the organism into calcitriol: inhibition of DNA synthesis of epidermal keratinocytes.

Indication
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Mild to moderate psoriasis vulgaris of the plaque type.

Notice! Regular determination of plasma calcium level and/or calcium excretion in urine during therapy!

Dosage and method of use
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Ointment: Apply a thin layer of the ointment once/day to the affected areas of skin (max. 15% of the body surface, max. 10 g ointment/day; max. for 8 weeks). For use up to a maximum of 18 months: 2-3.5 g ointment / day; max. 10% of the body surface.

Standard concentration
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Ointment: 0.00004%.

Undesirable effects
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Good tolerance, often well controllable skin irritations. Rare: hypercalcemia, calcification of tissues, focal calcification of renal vessels, erythema, exanthema, peeling, pruritus, worsening of psoriasis, folliculitis, skin atrophy, hyperpigmentation.

Interactions
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Calcium preparations, salicylic acid, cream bases without active ingredients.

Contraindication
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Pregnancy, lactation, children and adolescents < 18 years, large-area application (> 10% KO), psoriasis punctata, psoriasis pustulosa generalisata, diseases of the calcium metabolism, severe liver, kidney or heart diseases, application in intertriginous areas (occlusive effect)

Incompatibility
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Externals containing salicylic acid inactivate tacalcitol when used simultaneously and even when used at a later time a few hours before tacalcitol.

Preparations
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Curatoderm

Patientinformation
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Wash your hands after use to avoid transmission to non-diseased skin areas!

Authors

Last updated on: 29.10.2020