Can medication cause drooling as a side effect?

Certain drugs can make you drool by changing the way your body makes or moves saliva. For example, medicines that affect the chemicals in your brain or those that change how your nerves work might lead to more saliva being formed or slow down your swallowing.

Some drugs used to treat conditions like schizophrenia have been known to cause hypersalivation, or too much saliva, while other medications might make the muscles in your mouth less effective at swallowing. This extra saliva has a higher chance of collecting in your mouth and eventually drooling out.

There are studies that look at drugs causing changes in salivary gland function, and they show that this can be a side effect of how the medicine works. If you notice that you are drooling more than usual after starting a new medication, it might be a good idea to talk with your healthcare provider. They can check if the medicine is causing these changes and may suggest adjusting your medication or using a treatment that can help manage the extra saliva. You can also use a free symptom checker to better understand what might be causing your symptoms before your appointment.