110353 May 2026
For more specific information on dosing and detailed pharmacology, refer to professional resources like the Nursing Central Drug Guide or the Washington Manual . Chlorpheniramine Polistirex/codeine Polistirex (Tuxarin ER)
: It is strictly contraindicated in children under 12 years of age and in children under 18 following surgeries like tonsillectomies due to the risk of fatal respiratory depression. 110353
: Works by antagonizing the effects of histamine at H1cap H sub 1 For more specific information on dosing and detailed
: Assess respiratory rate, pulse, and blood pressure before and during administration. If the respiratory rate drops below 10 per minute, the patient should be checked for sedation and respiratory depression. 110353

![John Murray III and Anon., David Livingstone - Boat Scene (Painted Magic Lantern Slide), [1857], detail. Copyright National Library of Scotland, CC BY-NC-SA 2.5 SCOTLAND. John Murray III and Anon., David Livingstone - Boat Scene (Painted Magic Lantern Slide), [1857], detail. Copyright National Library of Scotland, CC BY-NC-SA 2.5 SCOTLAND.](https://livingstoneonline.org:443/sites/default/files/section_page/carousel_images/liv_014067_0001-carousel.jpg)
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![David Livingstone, Map of Lakes Nyassa and Shirwa [1864?], detail. Copyright National Library of Scotland, CC BY-NC-SA 2.5 SCOTLAND; Dr. Neil Imray Livingstone Wilson, CC BY-NC 3.0 David Livingstone, Map of Lakes Nyassa and Shirwa [1864?], detail. Copyright National Library of Scotland, CC BY-NC-SA 2.5 SCOTLAND; Dr. Neil Imray Livingstone Wilson, CC BY-NC 3.0](https://livingstoneonline.org:443/sites/default/files/section_page/carousel_images/liv_000077_0001-tile.jpg)
