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PubMed1992

Experimental research on antimotion sickness effects of Chinese medicine "pingandan" pills in cats.

Pingandan was a secret prescription for treatment of stomach upset, nausea and vomiting for emperors in the Qing Dynasty of China. This study was to compare the effects of Pingandan with those of scopolamine and dramamine on motion sickness (MS) and nystagmus. Fourteen cats were tested in a parallel swing (0.22 Hz, 3.9 m/S2) for 20 min, and then in a rotating chair (10 degrees/S2, 20 rpm) for 1-2 min. The effects of scopolamine 1 mg, dramamine 25 mg and three doses of Pingandan 50x, 30x, 10x of 0.45 g/kg were observed and compared to placebos. These drugs or placebos were administered to each cat 30-60 min prior to the tests. The post-rotary nystagmus and MS symptoms were recorded. The Suri's scale for MS severity, Latin square and double blind techniques were used. The interval between any two tests was 2-5 days. It was found that Pingandan 50x and scopolamine 1 mg were more effective than placebos in reducing MS symptoms (P less than 0.01) and suppressing slow phase velocity of nystagmus (P less than 0.05), while Pingandan 30x significantly reduced MS symptoms only (P less than 0.01). Pingandan 10x and dramamine 25 mg had no anti-MS effect. Chinese medicine Pingandan is an effective anti-MS drug.

Animals↗
PubMed1955

Anesthesia for eye operations in the aged.

Aged persons appear to fear eye operations. Hence both patient and surgeon are more at ease with the use of a general anesthetic, particularly if the anesthetist has visited the patient before the operation and reassured him. Early ambulation, ordinarily so desirable in the aged, is curtailed in most eye operations because the head and eyes must be completely quiet. Since barbiturates are not well tolerated by aged patients, Dramamine is used instead preoperatively. Dramamine adequately sedates but does not cause depression or hallucinations. Morphine is contraindicated because of its pupillary action; Demerol is the drug of choice for preoperative medication. Xylocaine applied directly to the pyriform fossa and vocal cords prevents laryngospasm, coughing and straining. Then, following induction with Pentothal, a Guedel airway is introduced into the oropharynx and through it a continuous flow of oxygen is maintained throughout the procedure. Relaxation of the eyelids is aided by the use of various muscle relaxants, succinylcholine being the relaxant of choice because it is rapidly eliminated. By administering narcotics intravenously during the course of the operation the amount of Pentothal needed can be held to a minimum. To prevent any slowing of the respiration, Nalline is administered in conjunction with the narcotic. In dealing with debilitated patients, Nalline is usually given in conjunction with the preoperative narcotic. Any latent slowing of the respiration can be promptly relieved by an additional dose of Nalline.

Aged↗
PubMed1992

[Clinical and experimental studies of royal made ping an dan on treatment of motion sickness].

This paper presents the results of clinical observation and experimental research of Royal Made Ping An Dan (RPAD) of the Imperial Hospital of Qing Dynasty. The clinical results showed that RPAD was effective in treating 343 patients with motion sickness, and their average time for producing effect was 24.1 +/- 13.5 minutes. The total effective rates of dramamine group and Ren Dan group were 69.4% and 67.7% respectively, the latter included 45.7% of basically cured and 55.0% of markedly effective cases. There were significant differences among these groups (P < 0.05-0.01). It revealed that the effect of RPAD was better than that of dramamine and Ren Dan. According to laboratory findings, RPAD had the ability of alleviating symptoms of motion sickness and inhibiting eyeball tremor and improving meningeal microcirculation of experimental animals.

Animals↗