OPHTHALMOLOGY

Q:My insurer told me that I have to switch to generic glaucoma drops to manage my glaucoma. Is the generic product as good as the brand name product?

A:As you know, glaucoma is a chronic disease that requires lifelong treatment. For many patients, generic glaucoma drops work but, as with any medication, there are exceptions.

Generally, the clinical effectiveness of the generic drop is assumed to have the same level of effectiveness because it is required to have the same concentration of active ingredi- ents as the brand name drop. However, other variances enter into picture such as inactive ingredients including preservatives used, pH adjustors, antioxidants, thickening agents, buffers, and substances to adjust tonicity. Patients may notice differences in how generic eye drops feel and how well they work. Aside from ingredients, other factors that can affect the efficacy of generic drops include bottle material, shape, and size that, if too stiff, make it difficult to administer the drops. The cap color and general appearance of the generic product can vary due to multiple manufacturers producing the drops. There can also be a variation in the efficacy of drops produced by various manufacturers. Choosing an effective, well-tolerated glaucoma medication that also meets insurance requirements such as a generic brand, involves the doctor and patient working together to ensure that the generic medication is achieving the desired results. When switching to a generic drop, your doctor may ask you to return to the clinic to evaluate its effectiveness for your particular needs. Keep your doctor informed of any changes or symptoms that may occur.