How should I use Hernexeos(Zongertinib)?

The dosage is weight-based and administered orally once daily.

Dosing Regimen

The recommended dosage is determined by the patient's body weight: 120 mg once daily for those weighing less than 90 kg, and 180 mg once daily for patients weighing 90 kg or more. This is achieved by taking two or three 60 mg tablets, respectively. HERNEXEOS can be taken with or without food. Tablets must be swallowed whole with water and not split, crushed, or chewed. Treatment continues until disease progression or unacceptable toxicity, with specific guidelines for dose modification or interruption in response to adverse reactions.