Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0033774 (pruritus)
 14,546 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Ketotifen, benzocycloheptathiophene, (Zaditen) an orally active, anti-allergic and anti-asthmatic drug in a dose of 1 mg twice daily was given from 2 to 20 months in 20 selected patients with food allergy (FA) or food intolerance (FI). Sixteen children and four adults of which ten had atopic dermatitis (AD), six urticaria or/and angiooedema (two of which with oropharynx pruritus, oedema of the lips and anaphylactic shock), two asthma, and two gastrointestinal disorders. Food allergy was proved by clinical history, exclusion diet positive challenge test, skin prick tests (SPT) total IgE (PRIST) and specific IgE (RAST). Gastrointestinal permeability was measured in 5 out of 20 patients using mannitol and lactulose as probe molecules on three occasions: (1) by ingestion of the markers alone, (2) with concomitant ingestion of the offending food(s), and (3) with previous administration of ketotifen (2 mg) six hours before ingestion of markers and offending food. In all five individuals, food ingestion resulted in a significant rise of lactulose: mannitol urinary ratio and previous administration of ketotifen resulted in a normalization of the mannitol:lactulose urinary ratio. Patients with urticaria and/or angiooedema, gastrointestinal symptoms, asthma, and oropharynx pruritus with oedema of the lips were completely protected. In patients with AD, 70% were greatly improved or improved but 30% remained the same. It is our impression that ketotifen offers a new therapeutic dimension and therapy in FA.
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PMID:Ketotifen in prevention and therapy of food allergy. 368 73

Ketotifen fumarate, formulated for the treatment of allergic conjunctivitis, is a histamine H1-receptor antagonist, mast cell stabilizer, and eosinophil inhibitor (decreases chemotaxis and activation of eosinophils). In this study, healthy volunteers 3 years of age or older received ketotifen fumarate .025% ophthalmic solution (n = 330) or placebo (n = 165) four times daily for 6 weeks. Ketotifen was safe and well tolerated in the adult and pediatric populations, with an incidence of ocular adverse events of 18.2%, compared with 15.2% with placebo. No ocular rebound vasodilation or itching was observed within 48 hours after treatment. Ketotifen has a favorable safety and tolerability profile, which may have a positive impact on compliance, an important aspect of effective symptomatic control of allergic conjunctivitis.
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PMID:Ocular tolerability and safety of ketotifen fumarate ophthalmic solution. 1243 Oct 41

A group of 25 patients with signs of seasonal allergic conjunctivitis treated during the period of 2 to 6 month with ketotifen fumarate 0.05% eye drops 2-3 times daily (Zaditen eye drops, Novartis Ophthalmic, AG, Switzerland) is described here. As subjective symptoms of itching, stinging, tearing, and mucous discharge were observed and evaluated, as well as objective signs of hyperemia of the conjunctiva and hypertrophy of the tarsal papillae. Similarly the onset of action, duration time, and toleration of the drug were assessed. Subjective symptoms disappeared after 10 days of treatment duration in 60% to 80% patients, after two months of treatment were present in the range 0% to 20%. Objective signs diminished after 10 days of treatment in 60%-72% patients, and after 2 months in 72% to 96% of patients. Hypertrophy of papillae of the tarsal conjunctiva did not totally disappear even after 6 month of treatment with ketotifen fumarate eye drops. Onset of action in all patients was 20 minutes or less, the duration of action was in the range of 8-13 hours. The drug was found as a good tolerable by all patients. Sixteen per cent of patients felt some burning following the instillation. The study states that ketotifen fumarate 0.05% eye drops are effective in a monotherapy of seasonal allergic conjunctivitis. Due to its multiple action, the drug prevents the allergic reaction as well. Subjective symptoms are influenced faster and more effective than the objective signs. The treatment of objective signs needs prolonged use of these drops.
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PMID:[Ketotifen fumarate (Zaditen) eye drops in the treatment of seasonal allergic conjunctivitis]. 1556 25