Solubilizer/Emulsifier
A non-ionic surfactant (Cremophor RH 40) derived from castor oil, used to solubilize hydrophobic drugs. Rare hypersensitivity reactions reported.
Solvent/Humectant
An organic compound used as a solvent and humectant. Can cause contact dermatitis in sensitive individuals.
Thickener/Gelling Agent
Penetration Enhancer/Solvent
Emollient
Fragrance/Counterirritant
pH Adjuster
Flavoring/Active
Humectant/Solvent
Skin Conditioner
Solvent/Antiseptic
Flavoring/Counterirritant
Preservative
Emulsifier/Solubilizer
Emollient/Vehicle
pH Adjuster
| Ingredient | Purpose | Common Allergen? |
|---|---|---|
| Polyoxyl 40 Hydrogenated Castor Oil | Solubilizer/Emulsifier | ⚠️ Yes — Castor Oil |
| Propylene Glycol | Solvent/Humectant | ⚠️ Yes — Propylene Glycol |
| Caffeine | — | No |
| Caramel | — | No |
| Carbomer Homopolymer | Thickener/Gelling Agent | No |
| Dimethyl Sulfoxide | Penetration Enhancer/Solvent | No |
| Ethylhexyl Hydroxystearate? | Emollient | No |
| Eucalyptus Oil | Fragrance/Counterirritant | No |
| Fumaric Acid? | pH Adjuster | No |
| Ginger | Flavoring/Active | No |
| Glycerin | Humectant/Solvent | No |
| Hamamelis Virginiana Top Water | Skin Conditioner | No |
| Isopropyl Alcohol | Solvent/Antiseptic | No |
| Menthol | Flavoring/Counterirritant | No |
| Phenoxyethanol | Preservative | No |
| Pine Needle Oil (pinus Sylvestris) | — | No |
| Polysorbate 20 | Emulsifier/Solubilizer | No |
| Safflower Oil | Emollient/Vehicle | No |
| Sodium Hydroxide | pH Adjuster | No |
This medication contains ingredients flagged in the following groups. Patients with these sensitivities should consult their prescriber.
1 ingredient may have cross-contamination risk with gluten (source-dependent):
1 ingredient may contain mammalian-derived components:
Other versions of LIDOCAINE HYDROCHLORIDE that avoid allergens found in this formulation.