In the United Kingdom , the hydrochloride form , lofexidine HCl , has been licensed .
In the United Kingdom , the hydrochloride form , lofexidine HCl , has been sold since 1992 for opioid withdrawal relief in tablet form as BritLofex by Britannia Pharmaceuticals .
In the United Kingdom , the hydrochloride form , lofexidine HCl , has been licensed and sold since 1992 for opioid withdrawal relief in tablet form as BritLofex by Britannia Pharmaceuticals .