What should you know about liquid letrozole?

Letrozole lowers oestrogen production and may be used for selected hormone-sensitive cancers. A liquid preparation can help someone who cannot swallow tablets, but its concentration and measuring instructions vary between preparations. The label should state how much medicine is in a measured volume.

Do not assume a spoon used for food gives an accurate dose. The liquid may need shaking, protection from light, refrigeration or use within a specified period, depending on how it was prepared. Ask the dispensing pharmacy for instructions specific to your bottle.

Use the oral syringe or measuring device supplied by the pharmacy. Check the label each time, measure on a level surface and clean the device as instructed. Do not mix the medicine into a full drink unless the pharmacist confirms that this is appropriate. Keep it away from children and do not share it.

Record missed or spilled doses and contact the oncology team or pharmacist for advice rather than estimating a replacement. Report all other medicines and supplements. Aromatase Inhibitor Drugs and Aromatase Inhibitor Therapy explain the wider treatment group.

Call promptly if the bottle leaks, the liquid changes appearance, the measuring device is lost, or a dose may have been taken incorrectly. Seek urgent help for breathing trouble, chest pain, facial swelling, or a severe allergic reaction. New severe bone pain also needs prompt medical review.

Ask for the exact volume per dose, whether the bottle needs shaking or refrigeration, the expiry or discard date, and what to do after a missed or spilled dose. Confirm how monitoring will cover symptoms, bones and other health conditions.