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Results for “Dimethindene”

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PubMed1991

Efficacy of topical dimetindene in experimentally induced pruritus and weal and flare reactions.

Double-blind, placebo-controlled studies were performed to assess the effect of 0.1% dimetindene gel on the itch threshold to intracutaneous histamine and on the weal and flare reaction after intracutaneous injection of histamine in normal volunteer subjects. Treatment of the forearm skin in 20 volunteers resulted in an increase in itch threshold with dimetindene gel compared to placebo. Treatment of the forearm skin with dimetindene gel in 32 volunteers had no significant effect on weal thickness in subjects treated for 10, 30 or 60 min, but there was a significant reduction in weal thickness in those subjects treated for 120 min. Topical dimetindene may be of value in treating conditions mediated through histamine release.

Administration, Topical↗
PubMed1978

Evaluation of the local antihistaminic activity of dimetindene maleate by a quantitative method.

The topical application of a 0.1% dimetindene maleate gel on the forearms of 11 subjects reduces the areas of both erythema and wheal produced by the intradermal injection of 0.025 mg of histamine hydrochloride to a statistically greater degree than 1% d-chlorpheniramine maleate cream (p less than 0.005 and p less than 0.0005, respectively). The quantitative method employed in this study has proved to be an excellent means for the evaluation of the antihistaminic activity of topical preparations.

Administration, Topical↗
PubMed2000

[Allergic rhinitis].

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Administration, Intranasal↗
PubMed1992

Antihistaminic efficacy of Ranitidine with & without Dimethendine maleate on histamine-induced cutaneous reactions.

The effect of Ranitidine, the H2-receptor antagonist, was investigated on cutaneous response to intradermal injection of histamine in healthy volunteers in a controlled, randomized, cross over study. The response was compared with that of the H1-receptor blocker; Dimethendine maleate used alone and in combination with the two antagonists. Reduction in the wheal area was significant in subjects pretreated with Ranitidine alone (P less than 0.05), and Dimethendine maleate alone (P less than 0.05); the combination of the two antagonists, did not produce additional reduction. Reduction in erythema area was not significant with Dimethendine maleate alone, but significant with Ranitidine alone (P less than 0.01). With the combination of the two antagonists the reduction was not more significant than with Ranitidine alone. The flare response scoring on visual analogue scale was not reduced significantly by Dimethendine maleate alone but reduced significantly by Ranitidine alone (P less than 0.10), and by combination of Ranitidine and Dimethendine maleate (P less than 0.05). Thus, Ranitidine appears to be more effective than Dimethendine maleate in reducing the erythema area and intensity of flare response and equieffective in reducing wheal response to histamine injection.

Adult↗
PubMed1962

Dimethpyrindene. Use in high dosage hyposensitization therapy; prevention of constitutional and excessive local reactions.

To give larger doses of antigen for hyposensitization, yet hold down constitutional reactions and excessive local reactions, the antigen was mixed with epinephrine, ephedrine and dimethpyrindene, the latter a new antihistamine, just before subcutaneous injection. Dimethpyrindene, a potent antihistamine with minimal side effects, was also administered orally. The incidence of constitutional reactions and excessive local reactions was considerably diminished. Larger doses of antigens were tolerated and longer intervals between treatments were possible, a point of particular significance in maintenance therapy. There was less pain and discomfort at the site of injection and clinical results were improved.

Anti-Allergic Agents↗