Can I take melatonin if I am taking Tamoxifen?

Good morning, Madam, Sorry for the delay in responding. It seems that your account was never activated, which caused the delay. I can confirm that there is no significant interaction between tamoxifen and melatonin. You could still start with melatonin 5mg or even 1mg. These smaller doses are more like what the body normally produces and should be tried before moving to larger doses. Have a good day, and good night :) Alexandre