
Not actual patient.

Not actual patient.
Not actual patient.
Each year, half a million Americans are diagnosed with cancers that may be treated by platinum-based chemotherapy. Cisplatin is often the backbone—damaging DNA to stop cancer cells and trigger cell death. It’s powerful, effective, and lifesaving.2-4
But here’s the caveat. Once infused, cisplatin rapidly binds to plasma proteins. By 4 hours, 90% is deactivated in the bloodstream. In the inner ear, where proteins are scarce, deactivation is nearly impossible.5-7
Inside the cochlea, fragile hair cells and neurons handle hearing. Fully formed by 23 weeks in utero, they don’t regenerate.1,8
Cisplatin overwhelms them with reactive oxygen species. The result? Permanent hearing loss. Often tinnitus. Sometimes vertigo. Always irreversible.1,2
While cisplatin clears the body in hours, it lingers in the cochlea—causing damage long after treatment ends. And too often, this goes unmentioned.1,2


Just one cycle of cisplatin can lead to permanent hearing loss—silencing the laughter, conversations, and sounds that fill daily life after cancer.

Left ear audiogram of a single patient at baseline before cisplatin treatment, after the first cycle, and after 4 cycles of cisplatin.
Data may not be representative of all patients.2
Adapted from Langer T, et al.
For many treated with cisplatin, it’s lifesaving, making the permanent and progressive impact of ototoxicity an important consideration.2

Speech and language skills15

Social-emotional development15,16

Career potential16

Ability to live independently16

Academic performance15,16
CIO is a caveat that is too often overlooked. Despite the known risks, audiologic monitoring is often underutilized


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Please see full Prescribing Information for PEDMARK.
PEDMARK (sodium thiosulfate injection) is indicated to reduce the risk of ototoxicity associated with cisplatin in pediatric patients 1 month of age and older with localized, non‑metastatic solid tumors.
Limitations of Use
The safety and efficacy of PEDMARK have not been established when administered following cisplatin infusions longer than 6 hours. PEDMARK may not reduce the risk of ototoxicity when administered following longer cisplatin infusions, because irreversible ototoxicity may have already occurred.