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Betaxolol

How Does It Work?

Betaxolol belongs to a group of drugs called beta-adrenergic blocking agents, more often known as beta blockers. As the name implies, these medications block beta receptors in the body. Beta receptors are located in a number of places within the body, including the eyes, the heart, and blood vessels. Stress hormones (such as adrenaline) bind to these receptors and cause certain reactions in the body, such as:
 
By blocking beta receptors, betaxolol causes the reverse effect of stress hormones and reduces blood pressure. It is important to note that betaxolol is more likely to block beta-1 receptors (such as those in the eyes, heart, and blood vessels), opposed to beta-2 receptors (such as those found in the lungs). This can theoretically make the medication safer than other beta blockers for people with breathing problems such as asthma.
 
Betaxolol lowers the pressure in the eye by decreasing the amount of fluid produced by the eye (known as aqueous humor).
 

When and How to Take Betaxolol

Some general considerations include the following:
 
  • Betaxolol comes in the form of tablets or an eye drop. It is usually used once or twice a day, depending on the particular product.
     
  • You can take this medication either with a meal or on an empty stomach.
     
  • For the eye drops, be sure you know exactly how to use the drops. The solution (regular Betoptic) does not need to be shaken, but the suspension (Betoptic S®) must be shaken before each use.
     
  • For the medication to work properly, it must be taken as prescribed. Betaxolol will not work if you stop taking it.
     
  • In general, the tablet form of the medication should not be stopped suddenly, as serious problems (including heart attacks) may result.
     
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Betaxolol Drug Information

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