Weight Loss Drug Vision Loss: A Growing Concern

In recent years, the weight loss industry has seen a surge in the development of new medications to help individuals achieve their weight loss goals. While these drugs may offer a quick fix for those struggling with excess weight, they have also been associated with a number of concerning side effects, including vision loss.

Two popular weight loss medications that have been linked to vision loss are Belviq (lorcaserin) and Qsymia (phentermine-topiramate). Both drugs are designed to work by suppressing appetite or increasing feelings of fullness, making it easier for individuals to stick to a healthy diet and exercise plan.

Belviq, which was approved by the FDA in 2012, is a selective serotonin receptor agonist that works by activating serotonin receptors in the brain to reduce appetite. While the medication has been shown to be effective in promoting weight loss, it has also been linked to a increased risk of vision problems, including:

• Bluish vision: Patients taking Belviq have reported seeing a blue or green tint on everything they look at.
• Distorted vision: Some individuals may experience distorted or blurred vision while taking the medication.
• Blind spots: Patients may notice blind spots or gaps in their vision.

Qsymia, which was approved in 2012, is a combination of phentermine and topiramate. Phentermine is a stimulant that suppresses appetite, while topiramate is an anticonvulsant that helps to reduce cravings for food. Like Belviq, Qsymia has also been associated with vision loss, including:

• Blurred vision: Patients taking Qsymia may experience blurred or double vision.
• Vision problems: Some individuals may experience changes in their vision, including decreased visual acuity or sensitivity to light.
• Uveitis: A rare but serious side effect of Qsymia is uveitis, an inflammation of the uvea, the middle layer of the eye.

What Causes Vision Loss with Weight Loss Drugs?

The exact mechanism by which weight loss drugs cause vision loss is not fully understood, but it is believed to be related to the affected medication’s action on the brain and the nervous system. Specifically:

• Belviq: The medication’s activation of serotonin receptors in the brain may disrupt normal visual processing, leading to vision problems.
• Qsymia: The combination of phentermine and topiramate may cause vision loss by altering normal visual processing or by increasing inflammation in the eyes.

How to Reduce the Risk of Vision Loss with Weight Loss Drugs

While the risk of vision loss associated with weight loss drugs is a concern, there are steps you can take to reduce your risk:

• Follow the recommended dosage: Always follow the recommended dosage instructions for your medication and do not increase the dose without consulting your doctor.
• Monitor your vision: If you experience any changes in your vision while taking a weight loss drug, such as blurred vision or seeing a blue tint, seek medical attention immediately.
• Consider alternative treatment options: If you are experiencing vision loss or other concerning side effects with your weight loss drug, talk to your doctor about alternative treatment options.

Conclusion

While weight loss drugs like Belviq and Qsymia may offer a quick fix for those struggling with excess weight, they are not without risks. Vision loss is a serious and potentially permanent side effect of these medications, and it is important to be aware of the potential risks before starting treatment. By following the recommended dosage, monitoring your vision, and considering alternative treatment options, you can reduce your risk of vision loss and achieve your weight loss goals in a safe and effective way.