Overview
11 DESCRIPTION Tetracaine hydrochloride is chemically designated as benzoic acid, 4-(butylamino)-,2-(dimethylamino) ethyl ester, monohydrochloride. Its chemical formula is C 15 H 24 N 2 O 2 • HCl and it is represented by the chemical structure: Tetracaine hydrochloride is a fine, white, crystalline, odorless powder and has a molecular weight of 300.82.
Mechanism of Action
12 CLINICAL PHARMACOLOGY 12.1 Mechanism of Action Tetracaine blocks sodium ion channels required for the initiation and conduction of neuronal impulses thereby affecting local anesthesia. 12.3 Pharmacokinetics The systemic exposure to tetracaine following topical ocular administration of Tetracaine Hydrochloride Ophthalmic Solution 0.5% has not been studied. Tetracaine hydrochloride is metabolized by plasma pseudocholinesterases and nonspecific esterases in ocular tissues.
Indications
- 1 INDICATIONS AND USAGE Tetracaine Hydrochloride Ophthalmic Solution 0.5% is indicated for procedures requiring a rapid and short-acting topical ophthalmic anesthetic. Tetracaine Hydrochloride Ophthalmic Solution 0.5% is an ester local anesthetic indicated for procedures requiring a rapid and short-acting topical ophthalmic anesthetic. ( 1 )
Common Doses
- Refer to label
Dosage
2 DOSAGE AND ADMINISTRATION One drop topically in the eye(s) as needed. Discard unused portion. ( 2.1 ) 2.1 Topical Administration One drop topically in the eye as needed. Discard unused portion. 2.2 Sterile Field Administration Open package using standard aseptic technique. The DROP‑TAINER ® dispenser may then be allowed to fall upon a sterile surface. The entire outer surface of the DROP‑TAINER ® dispenser and its contents are sterile.
Contraindications
- 4 CONTRAINDICATIONS None. None ( 4 )
Side Effects
- 6 ADVERSE REACTIONS The following serious ocular adverse reactions are described elsewhere in the labeling: Corneal injury with Intracameral Use [See Warnings and Precautions (5.1) ] Corneal Toxicity [See Warnings and Precautions (5.2) ] Corneal Injury due to Insensitivity [ See Warnings and Precautions (5.3) ] The following adverse reactions have been identified following use of Tetracaine Hydrochloride Ophthalmic Solution 0.5%.
Interactions
- No major interactions listed on the FDA label. Always consult a healthcare professional.