Side Effects of Timolol (Timoptic)
Timolol, known as the brand Timoptic, it is used in the treatment of a number of conditions including myocardial heart attack, migraine, glaucoma and hypertension.
Common Side Effects
The Timoptic label reported by the FDA lists the common side effects:
- Burning or stinging eyes
- Blurred or abnormal vision
- Conjunctival hyperemia (eye discharge)
- Unusual body sensations
- Keratitis (inflammation of the cornea)
- Conjunctivitis (pink eye)
- Cataracts (clouding of the lens)
- Decreased visual acuity
- Hypertension (high blood pressure)
Less Common Side Effects
Rare side effects of Timoptic are: fatigue, myalgia (muscle pain), hepatomegaly (increased liver size), hypoglycemia (decreased blood glucose concentration), hyperglycemia (increased blood glucose concentration), anorexia, nausea, diarrhea, dyspepsia (indigestion), dry mouth, abdominal pain, and alopecia (hair loss) (Timoptic label reported by the FDA).
About Pharmacogenetic Testing
Some patients do not develop any side effects when taking Timoptic while others experience severe adverse reactions. Pharmacogenetics investigates how differences in patient’s genetics can affect the therapeutic and adverse effects of a drug. Many studies have shown that alleles of receptors and enzymes result in different effects for patients. Therefore, there are different medication reactions between patients.
Identifying these polymorphisms can help clinical decision-making. For instance, a physician might reduce the dosage of a medication in a known poor metabolizer that will reduce the probability of the patient developing an adverse reaction.
Know Your Risk with the Rxight® Genetic Test
MD Labs provides Rxight®, which identifies known polymorphisms in 18 crucial genes to establish how a patient is likely to respond to hundreds of common prescription and over-the-counter (OTC) medications including Timoptic.
Contributors to this Article:
Michael Sapko, MD, PhD; and Deborah Kallick, PhD, Medicinal Chemistry
Read more about Rxight® Genetic Testing for Medications