Solvent/Humectant
A synthetic glycol used as a solvent and humectant in topical formulations.
Capsule Shell
Derived from animal collagen. Used in capsule shells. Not suitable for vegetarians/vegans or those with specific animal protein sensitivities.
Humectant/Solvent
| Ingredient | Purpose | Common Allergen? |
|---|---|---|
| Dipropylene Glycol | Solvent/Humectant | ⚠️ Yes — Propylene Glycol |
| Gelatin | Capsule Shell | ⚠️ Yes — Animal |
| Ethylene Glycol? | — | No |
| Glycerin | Humectant/Solvent | No |
| Noncrystallizing Sorbitol Solution? | — | No |
This medication contains ingredients flagged in the following groups. Patients with these sensitivities should consult their prescriber.
2 ingredients may contain mammalian-derived components:
Other versions of DIPHENHYDRAMINE HCL that avoid allergens found in this formulation.