A trial with eye drops of practolol, 0.2% and propranolol, 0.1%, and intravenous injection of practolol, 1-4mg/kg. and propranolol, 0.5-2mg/kg. in rabbits was done for the changes of ocular tension. Ocular tension was estimated by Schotz tonometer. The E.C.G. was recorded before and after treatment of the above drugs. In the rabbits all of doses of practolol, topically and systemically applied failed to reduce ocular tension, but propranolol reduced slightly ocular tension which was suggested that the lowering of ocular tension was mediated by its local anesthetic activity.
Injections, Intravenous ; Intraocular Pressure* ; Ophthalmic Solutions ; Practolol* ; Propranolol ; Rabbits*

Sclerosing peritonitis is an unusual fibrosing condition predominantly involving the omentum and simulating carcinoma. The presenting signs and symptoms, imaging examination and cancer antigen 125 (CA-125) status in sclerosing peritonitis sometimes resemble those of ovarian cancer. Thus, the possibility of sclerosing peritonitis should be considered in the differential diagnosis of ovarian carcinoma. It may occur idiopathically and secondary to chronic peritoneal dialysis, the use of peritoneovenous shunt, practolol therapy, or in association with ovarian tumors such as ovarian teratoma. We report a case of peritonitis initially suspected as ovarian carcinoma but diagnosed as sclerosing peritonitis associated with teratoma.
Diagnosis, Differential ; Omentum ; Ovarian Neoplasms ; Peritoneal Dialysis ; Peritoneovenous Shunt ; Peritonitis ; Practolol ; Teratoma

Recently several adrenergic beta receptor blocking agents such as dichloroisoprenaline, pronethalol, INPEA, H13/57, propranolol, sotalol, tolamolol, practolol and butoxamine were reported. It has been postulated for some time that there are two subgroups of beta receptors: cardiac receptors (beta 1-eceptor) and peripheral receptors (beta 2-receptor) responsible for vasodilatation and broncholdilatation. More recently, the cardioselective beta blockers have been developed; for example, practolol, and talamolol. Rabbits were anesthetized by the peritoneal injection of urethane 1 gm/kg and observed for 30 minutes. Arrhythmias were produced with lanatocide-C and norepinephrine through the ear vein of the anesthetized rabbits. Arrhythmias such as premature ventricular contraction and ventricular tachycardia were present within 7 minutes to 20 minutes after the injection of lanatocide-C 0.9mg, and within 15 seconds to 2 minutes after the injection of norepinephrine 150ug. Propranolol or practolol were injected before and after the production of the arrhythmias and so Lead II of the electrocardiogram was obtained from nedle electrodes inserted into the skin. Practolol was compared with propranolol on the changes of the heart rates and the arrhytmias produced by the injection of norepinephrine and lanatocide-C. The intravenous injection of propranolol and practolol reduced the heart rate but practolol reduced much lesser than propranolol. All of arrhythmias produced by lanatocide-C in anesthetzedrabbits were not abolished by practolol, but it blocked and prevented the development of arrhythmias in anesthetized rabbits on the administration of norepinephrine.
Arrhythmias, Cardiac* ; Butoxamine ; Ear ; Electrocardiography ; Electrodes ; Heart Rate ; Injections, Intravenous ; Norepinephrine ; Practolol* ; Propranolol ; Rabbits ; Skin ; Sotalol ; Tachycardia, Ventricular ; Urethane ; Vasodilation ; Veins ; Ventricular Premature Complexes