Biomedical subjects

K J Hüther

Publications and source records attributed to K J Hüther.

2 recordsLinked to original sources

PubMed1978

Effects of terfenadine and diphenhydramine alone or in combination with diazepam or alcohol on psychomotor performance and subjective feelings.

The effects of single oral doses of terfenadine, diphenhydramine and placebo, alone or in combination with diazepam or alcohol, on psychomotor performance and subjective feelings were evaluated in a double-blind, crossover study in 20 normal male volunteers. Terfenadine 60, 120 and 240 mg had no effect on psychomotor skills and subjective feelings, whereas diphenhydramine 100 mg slightly impaired certain features of psychomotor performance and severely worsened subjective feelings. Terfenadine 120 mg did not influence the adverse effects of oral diazepam 10 mg or of alcohol 0.75 g/kg on psychomotor performance and subjective feelings. In contrast, diphenhydramine 100 mg significantly enhanced these effects of diazepam and alcohol.

Adult↗

PubMed1977

Inhibitory activity of terfenadine on histamine-induced skin wheals in man.

The inhibitory effect of orally administered terfenadine on the area of histamine-induced skin wheals was studied by single dose and multiple dose trials in 12 normal male volunteers. Single doses of 20, 60 and 200 mg of terfenadine produced dose-dependent decreases in histamine wheal area that reached a maximum by the fourth hour after dosing. The 60 and 200 mg doses blocked almost 90% of histamine whealing, and significant reduction of the wheal area persisted for 8 h. During the multiple dose trial histamine whealing was markedly inhibited after the fifth and sixth dose of terfenadine 20, 40 or 60 mg every 8 h and of 60 mg every 12 h. On the last three dosage schedules inhibition persisted for at least 12 h after the final dose. Inhibition of histamine-induced skin whealing appears to be a quantitative index of the time course of histamine H1-receptor antagonist action.

Administration, Oral↗