There is no information available in the provided sources that suggests the Yervoy discount is available online. Yervoy is a prescription drug used to treat melanoma, and it is manufactured by Bristol-Myers Squibb. The drug's patent is set to expire in October 2020 [1].

The package insert for Yervoy provides information about the drug's indications, dosage, and administration, as well as its contraindications, warnings, and precautions. It also includes information about the drug's clinical pharmacology, pharmacokinetics, and adverse reactions [2].

The third source provides information about a collaboration between Bristol-Myers Squibb and Roche to conduct a clinical trial for the treatment of melanoma. The trial aimed to evaluate the safety and efficacy of combining Yervoy with Roche's drug, vemurafenib [3].

In conclusion, there is no information available in the provided sources that suggests the Yervoy discount is available online. The sources provide information about the drug's patent status, package insert, and a clinical trial involving Yervoy.

Sources:
[1] https://www.drugpatentwatch.com/p/biologics/tradename/YERVOY
[2] https://packageinserts.bms.com/pi/pi_yervoy.pdf
[3] https://www.reuters.com/article/us-bristol-roche-melanoma/bristol-roche-team-up-on-melanoma-study-idUSTRE75151W20110602