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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2191206Generated: October 26, 2026

Hydrochloric Acid → Lidocaine Hydrochloride

https://huagongshe.com/reaction/2191206

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDoxepinHCID 3158—
ReactantOxymetazolineHCID 4636—
Reactant1-Propanamine, 3-(dibenz[b,e]oxepin-11(6H)-ylidene)-N,N-dimethyl-, hydrochloride (1:1)HCID 14675—
ReactantOxymetazoline HydrochlorideHCID 66259—
ReactantHCID 178481191HCID 178481191—
ProductLidocaine HydrochlorideHCID 6314—

Reaction Steps

A 2% composition of doxepin in the nanolipid-vesicle composition of Preparation 2 above was prepared by mixing doxepin hydrochloride with the nanolipid vesicle formulation as described in Preparation 2 which had been modified by the addition of Keltrol to render a thick creamy consistency, in a mass/mass ratio of 2:98 with the aid of a high speed stirrer. The composition is designated DOXIPEX CREAM. (b) In similar manner a 1.7307% composition of Lidocaine Hydrochloride was prepared and designated LIDAREX LOTION. (c) A 0.3% composition of Scopolamine HBR was also prepared in the same manner and designated MZL Scopolamine. (d) A 0.5% nasal spray composition of Oxymetazoline HCl was also prepared in the same manner with some modification and designated Oxymetazoline MZL. (e) A 0.5% injection formulation of Bupivicaine HCl was further prepared in the same manner but with some modification and designated Bupivicaine MZL.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08329685B1
Source datasetuspto-grants-2012_12
ORD IDord-518d72c2bc324f2499a26c914e44744d
Source noteuspto-grants-2012_12