Alprazolam, more commonly known as Xanax, is used to treat anxiety and panic disorders. Methocarbamol is a prescription muscle relaxer, and Quetiapine is prescribed to treat schizophrenia, bipolar disorder, and major depressive disorder.
Article source: https://www.huffingtonpost.co.uk/entry/hayden-panettiere-cause-of-death_uk_6ab2bc99e4b08976697be6b4