Which brand name timolol 0.5% and 0.25% is preservative free?

• A. Timoptic XE
• B. Ocudose
• C. Betaoptic-S
• D. Betagan

Answer: (B)

Preservative-free eye drops are often provided in single-dose units to avoid exposing the delicate ocular surface to preservatives that can cause irritation or toxicity with long-term use. Timolol, a nonselective beta-blocker used for lowering intraocular pressure, is available in different brands and formulations, some of which include preservatives.

Ocudose is the preservative-free timolol option offered in single-dose units, available in both 0.5% and 0.25% strengths. Because it comes in sterile single-use containers, there’s no need for a preservative to maintain sterility between uses. The other brands listed are different timolol formulations or other beta-blockers and typically involve preserved multi-dose packaging or are not timolol in the exact preservative-free, single-dose format described.