Who called from 2536177338

Caller ID said: Avandia Actos.  Let it go to message and woman called for my husband by name.  Seems strange that these 2 names are drugs for diabetes and are associated with macular edema.  My husband does not take these drugs.

Got this same call, but did not answer it.
Display says Avandia Actos.

Picked up this call on phone without caller id. Caller asked for me by name. I said "Yes, she's here, and may I take a message?" Caller said "No message. Thank you." and hung up. I checked my recent calls online and say it was Avandia Actos. Hmmm. Who/What are these Avandia Actos callers?

Female caller asked for Husband & when I asked to take message, response was "no thank you" & caller hung up..

Asked for me by name and then hung up. Caller Id says children's cancer center. Just a recording when I call number back