Same thing just happened to me as all above has mentioned. I told them to remove my name from their call list. Then I registered on the FTC Do Not Call List
Both times they asked if me or someone in my family had been taking risperdal or any other anti-psychotics.
The second call I told them that I had been taking haloperidol, as my doctor told me it would keep me from killing any more telemarketers who cold call me.
1st time) no response
2nd time) someone was on the other side - didn't understand the caller - was not in the mood to deal with this and hung up quickly.