Cannabinoid and anesthetic compositions and methods

Abstract

The present disclosure relates to compositions, including, hydrogel compositions useful as topical analgesics including cannabinoids and anesthetics. The present disclosure also disclosure relates to compositions, including, hydrogel compositions useful as topical analgesics including cannabinoids and anesthetic as well as carboxymethyl cellulose, carrageenan and a cross-linking agent.

1 . A method of treating pain of a patient using a therapeutic composition, the therapeutic composition comprising:
 carboxymethyl cellulose in an amount of from about 1 wt % to about 25 wt %;   a biocompatible polymer in an amount of from about 1 wt % to about 10 wt %;   a polyalcohol in an amount of from about 1 wt % to about 70 wt %;   a cross-linking agent in its salt form and in an amount of from about 0.1 wt % to about 5 wt %;   at least one cannabinoid is in an amount of from about 1 wt % to about 20 wt %; and   an effective amount of at least one anesthetic,   wherein the composition has less than 0.5% water and the cross-linking agent remains in its salt form until the oral therapeutic composition is placed in an oral cavity.   the method comprising:   topically administering the therapeutic composition to an oral cavity surface of the patient;   converting the cross-linking agent from its salt form to its salt ions using saliva in the oral cavity; and   forming an insoluble matrix using the salt ions of the cross-linking agent to cross-link carboxymethyl cellulose in the oral cavity.   
     
     
         2 . The method of  claim 1 , wherein the polyalcohol is glycerin. 
     
     
         3 . The method of  claim 1 , wherein the at least one cannabinoid includes full spectrum hemp oil. 
     
     
         4 . The method of  claim 1 , wherein the at least one anesthetic includes benzocaine. 
     
     
         5 . The method of  claim 1 , wherein the at least one anesthetic is in an amount of from about 0.05 wt % to about 20 wt %. 
     
     
         6 . The method of  claim 1 , further including a salivary stimulating agent and the salivary stimulating agent is citric acid in an amount of from about 0.1 wt % to about 10 wt %. 
     
     
         7 . The method of  claim 1 , wherein the cross-linking agent is calcium chloride. 
     
     
         8 . The method of  claim 1 , wherein the therapeutic composition is a unit dose formulation. 
     
     
         9 . The method of  claim 8 , wherein the at least one cannabinoid includes full spectrum hemp oil in a unit dose amount of from about 2 mg. to about 30 mg. 
     
     
         10 . The method of  claim 8 , wherein the at least one anesthetic includes benzocaine in a unit dose amount of from about 2 mg. to about 20 mg. 
     
     
         11 . The method of  claim 1 , wherein topically administering the therapeutic composition to an oral cavity surface of the patient includes topically administering the therapeutic composition to the cheek tissue in the oral cavity. 
     
     
         12 . The method of  claim 1 , wherein the insoluble matrix includes cross-linked carboxymethyl cellulose, the biocompatible polymer, the polyalcohol, the at least one cannabinoid and the anesthetic. 
     
     
         13 . The method of  claim 1 , wherein the biocompatible polymer is carrageenan. 
     
     
         14 . The method of  claim 1 , further including a second biocompatible polymer in an amount of from about 1 wt % to about 10 wt %. 
     
     
         15 . The method of  claim 1 , wherein the second biocompatible polymer is xanthan gum.