Publications by authors named "I Bantutova"

The relationship between the average effective doses causing disturbances of the statokinetic reflex and the average effective doses of the analgesic and hyperthermic actions of morphine, fentanyl, codeine and tilidine was studied in the experiments on Wistar rats. The effective analgesic and hyperthermic doses of morphine (the agent with the highest drug-addiction properties) approach the dose inducing coordination disorders. In this respect fentanyl and codeine are close to morphine.

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Neuropharmacological studies with the compound 2-methyl, 3-phenyl, 3-methyltransxydroxasino-propiophenon hydrochloride with cipher PS1, were carried out on rats as well as follow-up of development of drug dependence after continuous usage of the substance. The obtained showed that the compound S1 had stimulating influence on the central nervous system of amphetamine-like type. After prolonged administration of amphetamine and the compound PS1 it was established in rats that amphetamine induced development of tolerance and occurrence of hypersensitivity during withdrawal.

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The effect of nicotinamide, administered immediately before the morphine or on the background of already developed morphine hyperthermic reaction, was studied on morphine hyperthermia. It was established that nicotinamide, administered before morphine, inhibited development of morphine hyperthermia, statistically significantly up to 120 min after administration of morphine. Nicotinamide, administered, on the 60th min after morphine injection, did not inhibit significantly the developed already hyperthermic reaction.

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The analgesic effect of 4-aminopyridine (pymadine) was studied in experiments on rats and mice at thermal and chemical pain stimulation. Pymadine (1, 3 and 5 mg/kg) exerted the analgesic effect when administered alone and concomitantly with analgin and morphine at chemical pain stimulation. During thermal pain stimulation pymadine had the analgesic effect only at dosage of 5 mg/kg and potentiated the action of morphine given in doses of 3 and 5 mg/kg.

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The influence of the suppository base and drug solubility on the release an absorption of phenobarbital and phenobarbital-sodium from model suppositories was investigated. It was established that the pharmaceutical and biological availability of phenobarbital is higher from a hydrophilic base because of its improved solubility. The rate and the degree of release of phenobarbital-sodium are more significant from lipophilic bases.

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