Laudanum toward banning opium tincture or at least requiring the product to be brought within the FDA's regulatory framework. Opium tincture remains in the British Pharmacopoeia, where it is referred to as Tincture of Opium, B.P., Laudanum, Thebaic Tincture, or Tinctura Thebaica, and "adjusted to contain 1% w/v of anhydrous morphine." It is a Class A substance under the Misuse of Drugs Act of 1971. At least one manufacturer (Macfarlan Smith) still produces opium tincture in the U.K. . "Gee's Linctus" is also available from most UK pharmacies, especially the Independent stores. This contains "Opium Tincture", at 0.083ml, per 5ml, and
Laudanum generally the same as with morphine, and include euphoria, dysphoria, pruritus, sedation, constipation, reduced tidal volume, respiratory depression, as well as psychological dependence, physical dependence, miosis, and xerostomia. Overdose can result in severe respiratory depression or collapse and death. The ethanol component can also induce adverse effects at higher doses; the side effects are the same as with alcohol. Long-term use of laudanum in nonterminal diseases is discouraged due to the possibility of drug tolerance and addiction. Long-term use can also lead to abnormal liver function tests; specifically, prolonged morphine use can increase ALT and AST blood serum levels. Life-threatening