Вставить артикль, где это необходимо: when drugs are administered to some patients … severe adverse reaction, such as collapse, may occur. this may be caused by … allergy to … drug administered, e.g. penicillin, or interaction with another drug which … patient is already taking for medical reasons. to prevent these undesirable effects … careful study of a case history must always be made before any drugs are used. if it is found that … drug allergy exists, or … patient is taking drugs prescribed by … doctor, or taking nonprescription drugs for self – medication this information must be recorded on … patient’s chart, regularly up – dated and … appropriate precautions taken. exercise 5. вставьте предлоги там, где это необходимо: analgesics are drugs administered internally or externally … the relief of pain. most pain is caused … inflammation and the most effective drugs … relief of pain are accordingly those that combine analgesic and anti – inflammatory effects. however, the anti – inflammatory drugs mentioned above are all corticosteroids, and these cannot be taken internally … the treatment. nonsteroidal anti – inflammatory drugs (nsaids) are used instead and those that have analgesic properties may be taken internally … pain.

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