"Suicidal thinking" refers to having thoughts about wanting to harm oneself or end one's life. It means that a person is feeling extremely distressed or overwhelmed and may be considering suicide as a solution to their problems. Full definition
There is also mention of the increased risk of suicidal thought on the drug's label. (consumerhealthdigest.com)
Grace, 16, has been bullied for the past nine years, has moved schools twice, struggled with suicidal thoughts and taken medication for anxiety and depression. (bbc.co.uk)
While it is true that not all teens who experience suicidal thoughts are also suffering from symptoms of depression, these two conditions are quite strongly connected. (wcwonline.org)