Английский язык. Кислякова Н.В - 12 стр.

                                          12
                                        Unit 4
         Lead-in
         I. Match the Russian words with their English equivalents. Practice reeling
and memorize them.
1. пластырь                           -          irritant
2. применяться                        -          application
3. кожа                               -          patch
4. наружное применение                -          to peel off
5. непроницаемый                      -          skin
6. прилипание                         -          to be applied
7. снять, отодрать                    -          adhesion
                                      -          detach
8. применение                         -          impermeable
9. раздражающий                       -          outer covering
10. отделять
         Reading
         II. Divide the text info several parts. For each part choose the right heading
from the list below.
    1. Composition.
    2. Packing.
    3. Description and properties.
    4. Usage.
                                        Patches
         Patches are flexible pharmaceutical preparations of varying sizes,
containing one or more active substances They are intended to be applied to the
skin. They make active substances pass through the skin and circulate in the
organism.
         Patches normally consist of active substances and an outer covering
supporting the preparation. Patches are covered by a protective liner, which is
removed before applying a patch to the skin. The protective liner generally consists
of a sheet of plastic or metal material. When removed, the protective liner does not
detach the preparation. The outer covering is a backing sheet impermeable to the
active substance and to the water, designed to support and protect the preparation.
The outer covering may have the same dimensions as the preparation or it may be
larger. In the latter case the overlapping border of the outer covering is covered by
pressure-sensitive adhesive substances which assure the adhesion of the patch to
the skin. The preparation contains the active substances together with excipients
intended to modify the rate and to enhance transdermal absorption. It may be a
single layer or multi layer solid or semi-solid matrix (вещество).
         The patch adheres firmly to the skin by gentle pressure of hands or the
fingers and can be peeled off without causing appreciable injury to the skin. The
patch must not be irritant or painful to the skin after repeated applications.
         Patches are normally enclosed in sealed sachets individually.
         Vocabulary practice