hi haribo777,
The dose of chlorpromazine, at 10 mg, that you were taking, and the fact that you tapered this miniscule dose over an extended period of time, makes it rather unlikely that you have experienced a withdrawal effect. One important question is whether the sounds that you heard are similar or the same as the symptoms for which you originally began taking chlorpromazine. If they are, then the sound is likely a recurrence of symptoms due to stopping the medication, rather than a side effect. However, if it is much different than your symptoms in the past, there is a remote possibility that the sound represents a side effect from discontinuation, and you may need to discontinue more slowly. Alternatively, it may represent Tardive Dyskinesia (see below).
You may be familiar with the disorder called Tardive Dyskinesia, which involves involuntary, writhing, twisting, muscle movements caused by exposure, particularly for a long time (generally 20%/year of exposure), to medications such as chlorpromazine (
anti-psychotics of the older variety). While the muscles involved usually involve the mouth, lips, tongue and cheek, they can involve any muscles in the body. In your case, this could be relevant because there is a tiny muscle inside your middle ear called the stapedius muscle. If you are having a dyskinesia of this muscle, this could cause you to hear an odd sound. Normally the stapedius muscle causes dampening of sounds that are very loud, limiting damage to the eardrum and ther structures. This is a rare muscle to be involved in Tardive Dyskinesia, but possible.
If this is Tardive Dyskinesia, there is a good chance that it will gradually go away over days, weeks, or even months. On the other hand, it unfortunately may persist.
After discussing this with your psychiatrist, if your symptom persists, you may want to see a neurologist to help to assess whether or not this is Tardive Dyskinesia. Good luck!
E. Seigle MD
