Timolol - Adventist HealthCare

Timolol

Drug Information

Timolol is a beta-blocker drug used to lower blood pressure in people with hypertension, treat people after heart attacks, and prevent migraine headaches. Timolol is available alone and in a combination product used to lower blood pressure. Timolol is also available in eye drop and eye gel preparations used to lower high internal eye pressure due to glaucoma and other conditions.

Common brand names:

Betimol, Istalol, Timoptic XE

Summary of Interactions with Vitamins, Herbs, & Foods

Types of interactions:BeneficialAdverseCheck

Replenish Depleted Nutrients

  • none

Reduce Side Effects

  • Coenzyme Q10

    In a group of 16 glaucoma patients treated with a timolol eye preparation, six weeks of oral coenzyme Q10 (90 mg per day) was reported to reduce timolol-induced cardiovascular side effects without affecting intraocular pressure treatment.

Support Medicine

  • none

Reduces Effectiveness

  • none

Potential Negative Interaction

  • Pleurisy Root

    As pleurisy root and other plants in the Aesclepius genus contain cardiac glycosides, it is best to avoid use of pleurisy root with heart medications such as beta-blockers.

    The interaction is supported by preliminary, weak, fragmentary, and/or contradictory scientific evidence.
  • Potassium

    Some beta-adrenergic blockers (called "nonselective" beta blockers) decrease the uptake of potassium from the blood into the cells, leading to excess potassium in the blood, a potentially dangerous condition known as hyperkalemia. People taking beta-blockers should therefore avoid taking potassium supplements, or eating large quantities of fruit (e.g., bananas), unless directed to do so by their doctor.

    The interaction is supported by preliminary, weak, fragmentary, and/or contradictory scientific evidence.

Explanation Required 

  • none

The Drug-Nutrient Interactions table may not include every possible interaction. Taking medicines with meals, on an empty stomach, or with alcohol may influence their effects. For details, refer to the manufacturers' package information as these are not covered in this table. If you take medications, always discuss the potential risks and benefits of adding a new supplement with your doctor or pharmacist.

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