A tincture is an alcoholic extract of plant or animal material or solution of such low volatility substance. Tincture of opium which is also known as laudanum is an alcoholic herbal preparation containing approximately 10% powdered opium by weight.
Opium is a highly narcotic drug acquired as dried latex that contains approximately 12% of the analgesic alkaloid morphine. Opium is processed chemically to produce heroin and other synthetic opioids for medicinal use and other uses. Opium tincture is reddish brown in color and bitter in taste.
Opium tincture contains morphine and codeine and it is primarily used as an analgesic and cough suppressant. Opium tincture enhances the tone in the long segments of the longitudinal muscle and inhibits propulsive contraction of circular and longitudinal muscles.
Opium tincture remains in the British Pharmacoepia, where it is referred to as Tincture of Opium, B.P., Laudanum, Thebaic Tincture, or Tinctura Thebaica.
Major methods of preparation of opium include processing it into regular opium tincture (tinctura opii).
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