Tinctura Opii (U.S.P.)
By H. TREVERTON BOND, M. D.
The following is a quick method of preparing tinctura opii, thoroughly exhausting the opium; the resulting product is of officinal strength.
Rx. Powdered opium; two and one-half troyounces.
Triturate in a mortar with one pint of boiling water gradually added, then add one pint of alcohol, shake thoroughly and filter; the opium left on the filter will be properly packed for percolation with the filtered liquid, which is the next step, adding sufficient water to the dregs to displace any remaining portion, until two pints of tincture are obtained.
Philada., Oct. 17th, 1871.