Lapatinib and Methylcellulose

• Generic Name: lapatinib
• Dosage Forms: n.a.
• Other Brand Names: Tykerb

Lapatinib is used to treat advanced hormone-related breast cancer that has progressed or spread after treatment with other cancer medicines.

Lapatinib is used for this condition only if your tumor tests positive for a protein called human epidermal growth factor receptor 2 (HER2). HER2 protein can speed the growth of cancer cells.

In postmenopausal women, lapatinib is given in combination with a hormonal medicine called letrozole (Femara). In others, lapatinib is given together with a cancer medicine called capecitabine (Xeloda).

Lapatinib may also be used for purposes not listed in this medication guide.

• Generic Name: methylcellulose
• Dosage Forms: n.a.
• Other Brand Names: Citrucel, Citrucel SF, Citrucel Food Pack, Citrucel Clear Mix, Citrucel Lax

Methylcellulose is a bulk-forming laxative that increases the amount of water in your stools to help make them softer and easier to pass.

Methylcellulose is used to treat constipation and to help maintain regular bowel movements.

Methylcellulose may also be used for purposes not listed in this medication guide.