Duboisia Hopwoodi
By Timothy F. Allen โ The Encyclopedia of Pure Materia Medica
Duboisia hopwoodi, Von Mueller.
Natural order , Solanaceรฆ.
Common name , (Native) Pituri.
Authority.
Dr. Sidney Ringer, Lancet, April, 1879 (Am. Journ. Med. Sci., April, 1879, p. 539).
From twelve observations made on man, he finds that it produces faintness, pallor, giddiness, tremor, hurried and superficial breathing, increased frequency of pulse, perspiration; in larger doses salivation, drowsiness, convulsive twitchings, spasmodic rigidity of the extremities; in small doses, internally administered, it contracts, in large it widely dilates the pupils; locally applied, it contracts and then widely dilates the pupils.
Mr. Tweedy saw the patients, and examined the eyes while under the influence of Pituri. He reports as follows: "I have little to add to your account of the effect on the eye of the local application of a solution of Pituri, except to note that, although the pupil was widely (not fully) dilated, the accommodation was almost unaffected. The patients could read well, and they did not complain of much mistiness. Except the smarting, a weak solution of Atropia, say 1/30 grain to an ounce, would produce the same symptoms as the one per cent. solution of Pituri."