III. Mechanism

  1. Nonselective Beta Blocker (Beta-1 and Beta-2 Adrenergic Blockade)

IV. Dosing

  1. Start 10 mg orally twice daily
  2. Target 20-40 mg/day divided twice daily
  3. Maximum 60 mg/day

V. Pharmacokintics

  1. Mildly lipophilic
  2. Moderate first pass liver metabolism
  3. Hepatic elimination
  4. CYP2D6 metabolism

VI. Adverse Effects

VII. Safety

  1. Pregnancy Category C
  2. Safe in Lactation

IX. References

  1. (2019) Presc Lett, Resource #350503, Comparison of Oral Beta Blockers
  2. (2020) Med Lett Drugs Ther 62(1598): 73-80
  3. Olson (2020) Clinical Pharmacology, Medmaster Miami, p. 66-7
  4. Hamilton (2020) Tarascon Pocket Pharmacopoeia

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timolol (on 11/23/2022 at Medicaid.Gov Survey of pharmacy drug pricing)
TIMOLOL 0.5% EYE DROP Generic $26.42 per ml
TIMOLOL 0.5% GEL-SOLUTION Generic $30.70 per ml
TIMOLOL 0.5% GFS GEL-SOLUTION Generic $30.18 per ml
TIMOLOL MALEATE 0.25% EYE DROP Generic $0.69 per ml
TIMOLOL MALEATE 0.5% EYE DROP Generic $4.67 each
TIMOLOL MALEATE 0.5% EYE DROPS Generic $1.15 per ml