Drug Guide
Bepotastine Besilate
Classification
Therapeutic: Antihistamine, Ophthalmic
Pharmacological: H1 antihistamine
FDA Approved Indications
- Relief of ocular itching associated with allergic conjunctivitis
Mechanism of Action
Bepotastine besilate is a selective H1 antihistamine that blocks histamine-induced allergenic responses in the eye, reducing symptoms such as itching and inflammation.
Dosage and Administration
Adult: One drop in each affected eye twice daily (morning and evening)
Pediatric: Data limited for children under 4; consult specific guidelines or product labeling
Geriatric: No specific dosage adjustments required; monitor for ocular or systemic adverse effects
Renal Impairment: No specific adjustment needed but caution advised
Hepatic Impairment: No specific adjustment needed
Pharmacokinetics
Absorption: Minimal systemic absorption due to topical administration
Distribution: Primarily local action in ocular tissues
Metabolism: Metabolized minimally; primarily excreted unchanged in tears and minimal systemic absorption
Excretion: Excreted in tears and via systemic circulation in minimal amounts
Half Life: Approximate ocular tissue half-life not specified; systemic half-life not applicable due to limited absorption
Contraindications
- Known hypersensitivity to Bepotastine or any component of the formulation
Precautions
- Use with caution in patients with active ocular infections or abrasions; monitor for signs of allergic reaction or hypersensitivity
Adverse Reactions - Common
- Ocular Burning (Frequent)
- Ocular Discomfort (Common)
- blurred vision (Less common)
Adverse Reactions - Serious
- Anaphylaxis (Rare)
- Eye irritation worsening (Rare)
Drug-Drug Interactions
- No major systemic interactions expected due to minimal absorption
Drug-Food Interactions
- No known significant food interactions
Drug-Herb Interactions
- Limited data; consult with healthcare provider
Nursing Implications
Assessment: Assess for ocular allergy symptoms and pre-existing ocular conditions
Diagnoses:
- Risk for injury related to ocular reactions
- Impaired sensory perception
Implementation: Administer drops as prescribed; instruct patient on proper instillation technique
Evaluation: Monitor for relief of symptoms and any adverse effects, especially ocular irritation or hypersensitivity
Patient/Family Teaching
- Use drops as directed, usually twice daily
- Avoid touching the tip of the dropper to eyes or any surfaces
- Report any severe eye irritation, pain, or vision changes
- Understand that some transient burning or discomfort may occur
Special Considerations
Black Box Warnings:
- None
Genetic Factors: No specific genetic considerations identified
Lab Test Interference: None known
Overdose Management
Signs/Symptoms: Ocular irritation, hypersensitivity reactions, or systemic allergic responses (rare)
Treatment: Discontinue use; provide symptomatic relief; emergency care if systemic allergic reaction occurs
Storage and Handling
Storage: Store at room temperature, away from moisture and heat
Stability: Stable up to expiration date when unopened; follow label instructions for opened bottles