Nintedanib (Nintedanib) — Patient-Friendly Guide (Australia)

Nintedanib is a prescription medicine used to treat certain serious lung diseases and, in some situations, other conditions related to abnormal blood-vessel growth in the body. This guide is designed to help you understand how nintedanib works, what to expect during treatment, common safety issues, and practical tips for everyday use in Australia.

Always follow the advice of your healthcare team. Information below is general and may not apply to every patient.

Quick product overview

What is nintedanib?

Nintedanib is a medicine that belongs to the class of tyrosine kinase inhibitors. It works by blocking certain enzymes involved in pathways that can contribute to:

• Fibrosis (progressive lung scarring), particularly in specific forms of interstitial lung disease
• Abnormal signalling for growth in tissues (including signals related to blood vessel growth)
• Inflammation and tissue remodelling processes that may worsen long-term lung function

Mechanism of action (how it works)

Nintedanib inhibits multiple tyrosine kinase targets. These targets are part of signalling pathways driven by growth factors such as:

• VEGFR (vascular endothelial growth factor receptors)
• FGFR (fibroblast growth factor receptors)
• PDGFR (platelet-derived growth factor receptors)
• Other related kinases involved in tissue repair and remodelling

In the lungs, these pathways can contribute to the progression of scarring. By blocking them, nintedanib may help slow the decline in lung function in certain approved diseases.

Typical uses and indications in Australia

In Australia, nintedanib is used for specific approved indications, most commonly related to interstitial lung diseases. Availability and exact eligibility depend on the diagnosis and severity confirmed by your specialist team.

Commonly used for:

• Idiopathic pulmonary fibrosis (IPF)
• Fibrosing interstitial lung diseases with a progressive phenotype (as defined by specialist assessment and guideline criteria)

Additional uses may exist depending on the latest regulatory updates and clinical evidence. Your treating doctor will confirm whether your condition is an approved indication.

How nintedanib is taken: dosing and timing

Nintedanib is usually taken as capsules by mouth, typically twice daily for many lung indications. Your prescription label and your doctor’s plan are the most important guides for dose strength and schedule.

Typical dosing approach (general)

• Starting dose is chosen by your clinician based on your diagnosis, other medicines, and your overall health.
• Take the doses about 12 hours apart (e.g., morning and evening).
• Swallow capsules whole with water. Do not open or crush unless your healthcare team instructs otherwise.

If side effects occur

Some people may need dose adjustments due to side effects—particularly diarrhoea or liver enzyme elevations. Your doctor may recommend temporary interruption, dose reduction, or supportive medicines.

Missed dose

• If you miss a dose, take it when you remember if it is still near your next scheduled time.
• If it is almost time for the next dose, skip the missed dose.
• Do not take extra capsules to make up for a missed dose.

If you are unsure, contact your pharmacist for advice based on your exact schedule.

Food interactions and what to eat

Food can affect how nintedanib is absorbed. For many patients, consistent timing with meals helps reduce unpredictable side effects. Many dosing instructions commonly advise taking nintedanib with food to improve tolerability.

• Take with meals (follow your specific instructions from your healthcare provider).
• Try to keep the timing consistent each day.
• If you experience stomach upset, discuss strategies with your healthcare team—sometimes adjusting meal timing can help.

If you are given specific directions (for example, taking with food vs. at a certain time relative to meals), follow those directions exactly.

Alcohol and medicine interactions

Alcohol

Alcohol may increase the risk of stomach irritation and can also affect the liver. Because nintedanib requires monitoring of liver function, it’s best to discuss alcohol use with your doctor.

• Consider limiting or avoiding alcohol, especially if you have a history of liver disease or elevated liver enzymes.
• If you drink alcohol, do so cautiously and only if your healthcare team says it is safe for you.

Important medicine interactions

Nintedanib is metabolised through pathways involving liver enzymes, including CYP systems and P-glycoprotein (P-gp). Some medicines can either increase nintedanib levels (raising side-effect risk) or decrease levels (reducing effect).

Examples of medicines that may interact (not exhaustive):

• Strong enzyme inducers (may reduce nintedanib levels): certain anticonvulsants (e.g., phenytoin, carbamazepine), rifampicin-type antibiotics, some herbal products like St John’s wort
• Strong inhibitors (may increase nintedanib levels): some antifungals and certain antibiotics
• Anticoagulants/antiplatelet agents (may increase bleeding risk): discuss individually, especially if you have clotting disorders or procedures planned
• Other anti-cancer medicines or kinase inhibitors (interaction risk may be higher)

Tell your pharmacist about all medicines you take, including non-prescription products, vitamins, supplements, and herbal remedies. This helps avoid unsafe combinations.

Pharmacokinetics (PK) — what the body does to nintedanib

Pharmacokinetics describes how the medicine moves through the body—absorption, distribution, metabolism, and excretion. While details may vary by individual, the following points are important for understanding treatment.

• Absorption: Nintedanib is absorbed after oral dosing. Food can influence the extent and timing of absorption; follow “with food” instructions provided for your treatment.
• Distribution: After absorption, nintedanib distributes into body tissues. Protein binding occurs in the bloodstream.
• Metabolism: The liver is an important site of metabolism, involving enzyme pathways that can be affected by interacting medicines.
• Elimination: Metabolites are excreted mainly via biliary and faecal routes.
• Steady state: Levels typically build up over repeated dosing. Consistent daily dosing helps maintain stable exposure.

Because liver metabolism plays a role, liver function monitoring is a key safety measure during treatment.

Safety profile: what to watch for

Like many targeted therapies, nintedanib can cause side effects. Not everyone experiences them, and many are manageable with supportive care and dose adjustments. The most important risks to recognise include those related to the gut, liver, bleeding, and cardiovascular events.

Common side effects

• Diarrhoea (often the most frequent issue)
• Nausea, reduced appetite, stomach discomfort
• Vomiting
• Elevated liver enzymes (detected on blood tests)
• Headache or fatigue
• Weight loss in some patients

Serious or urgent side effects (seek medical help promptly)

• Signs of significant bleeding (e.g., coughing/vomiting blood, black/tarry stools, unusual bruising or prolonged bleeding)
• Severe diarrhoea or dehydration symptoms (dizziness, fainting, very low urine output)
• Severe allergic reactions (swelling of face/lips, trouble breathing, widespread rash)
• Liver injury symptoms such as yellowing of skin/eyes, dark urine, severe right upper abdominal pain, or persistent marked nausea
• Cardiovascular symptoms such as chest pain, severe shortness of breath, or signs of stroke (face drooping, arm weakness, speech difficulty)

Monitoring typically recommended

• Liver function tests before and during treatment (exact schedule varies)
• Assessment of gastrointestinal side effects and hydration status
• Review of blood pressure and cardiovascular symptoms when clinically relevant

Practical use tips (to help you stay comfortable)

Managing diarrhoea

• Start supportive measures early (your doctor may recommend anti-diarrhoea medication and fluid/electrolyte replacement plans).
• Stay well hydrated—small sips of fluids frequently can help if your stomach is unsettled.
• Consider bland foods (e.g., toast, rice, bananas) during flare-ups if advised by your dietitian or healthcare team.
• Keep track of frequency and severity so your team can adjust treatment promptly if needed.

Supporting nutrition

• Eat small, regular meals, especially if appetite is reduced.
• If weight loss becomes significant, let your healthcare team know early—dietitian support may be helpful.

Liver safety habits

• Limit or avoid alcohol unless your doctor says it’s safe.
• Avoid starting new supplements or herbal products without checking with your pharmacist.
• Attend scheduled blood tests and follow-up appointments.

When you should contact your healthcare team right away

• Diarrhoea that does not improve quickly or is causing dehydration
• Yellowing of skin/eyes or dark urine
• Unexpected bleeding or bruising
• Severe rash, breathing difficulties, or swelling

Alternative options (discuss with your specialist)

The best alternative depends on your specific diagnosis, severity, other medical conditions, and prior treatment history. For progressive fibrosing lung diseases, specialists may consider other approved therapies or supportive care plans.

Possible categories of alternatives include:

• Other anti-fibrotic medicines (for certain diagnoses such as idiopathic pulmonary fibrosis)
• Supportive management including pulmonary rehabilitation, oxygen therapy when needed, vaccinations, and symptom-targeted treatments
• Clinical trials where appropriate

Your doctor can explain which options are suitable for your exact condition and how nintedanib compares in terms of benefits and side effects.

Australia market and legal context (overview)

In Australia, medicines are regulated through the Therapeutic Goods Administration (TGA) and must meet quality, safety, and efficacy requirements. Medicines like nintedanib are provided through established healthcare pathways to ensure patients receive appropriate monitoring and guidance.

Availability may vary by state/territory and by whether the medicine is supplied through hospitals, specialist clinics, or community pharmacies. Your healthcare team can advise on the most appropriate and timely supply route.

Because eligibility and monitoring requirements are important, it’s best to use reputable suppliers and follow Australian safety practices.

Recent guidance and updates (what to look out for)

Guidance for fibrosing interstitial lung diseases and their treatments may evolve as new research becomes available. In clinical practice, updates can include:

• Refinements to criteria for “progressive” fibrosing disease
• Changes to monitoring schedules (especially liver testing frequency)
• Updated approaches to managing diarrhoea and dose adjustments
• New information on interactions with commonly used medicines

Your treating specialist and pharmacist can tell you what is current for your condition in Australia and whether any new advice affects your treatment plan.

Delivery, availability and storage information (online pharmacy)

Availability

Nintedanib may be supplied in community pharmacies and through medication delivery services depending on stock levels. In some cases, supply arrangements may depend on your treatment indication and monitoring requirements.

Delivery

• Delivery timing depends on stock availability and local courier services.
• Some medicines may require additional verification steps to ensure appropriate handling and patient safety.

Storage

Follow the storage instructions on the product packaging. In general:

• Store at room temperature unless otherwise indicated.
• Keep away from moisture and direct sunlight.
• Keep out of reach of children.

Frequently asked questions (FAQ)

1) How long does nintedanib take to start working?

It is not always possible to feel an immediate benefit. The goal of treatment for many lung indications is to slow disease progression. Clinicians usually assess response through lung function tests, symptoms, and imaging over time.

2) What should I do if I get diarrhoea?

Contact your healthcare team promptly, especially if diarrhoea is frequent, severe, or causes dizziness or dehydration. Early supportive treatment (fluids/electrolytes and anti-diarrhoeal medicines if advised) can make a big difference.

3) Do I need liver blood tests?

Yes. Liver function monitoring is an important part of safety with nintedanib. Your doctor will schedule tests and advise what to do if results are abnormal.

4) Can I take nintedanib with food?

Many dosing instructions commonly advise taking nintedanib with food to support tolerability and absorption. Follow the instructions given for your specific product and dose.

5) Can I drink alcohol while taking nintedanib?

Alcohol may increase the risk of liver-related problems and stomach irritation. Discuss your alcohol intake with your doctor or pharmacist to decide what is safe for you.

6) What interactions should I tell my pharmacist about?

Tell your pharmacist about all medicines and supplements you use, including: enzyme-inducing agents, enzyme inhibitors, anticoagulants/antiplatelets, antifungals/antibiotics, and herbal products (especially St John’s wort).

7) Can nintedanib be taken with other medicines for cough, pain, or allergies?

Many common non-prescription medicines may be used safely, but interactions can still occur. If you’re unsure, ask your pharmacist before combining products—especially if you take multiple medicines.

8) What if I need surgery or dental work?

Because bleeding risk may be relevant with some targeted therapies, inform your surgeon/dentist and your prescribing doctor well in advance. They will advise if treatment should be paused and when to restart.

9) Are there any signs that mean I should stop and seek urgent help?

Seek urgent medical help if you have signs of significant bleeding, severe dehydration from diarrhoea, symptoms of liver injury (yellowing, dark urine), or signs of a serious allergic reaction (swelling, trouble breathing).

10) What if I miss a dose?

If you miss a dose, take it when you remember if it’s close to the next dose time. If it’s almost time for the next dose, skip the missed dose. Do not take double doses.

Important reminder

Nintedanib is a complex medicine that requires monitoring and careful management of side effects and interactions. If you have questions about your dosing schedule, food timing, or medicines you plan to start, stop, or switch, speak with your pharmacist or prescribing clinician.