When we look for causes of tooth grinding it is good to ask whether you have started any new medication recently. Studies show that anti-depressant medications such as fluoxetine, sertraline and venlafaxine can be a cause of clenching and grinding1. 

Clenching can occur 3-4 weeks after starting anti-depressants and tends to resolve a few weeks after stopping. If you have any concerns about medication causing your tooth grinding symptoms, please continue taking your medication and discuss this with your GP. 

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