Opdyta 40mg Injection consists of the active substance Nivolumab. It is indicated to treat cancers of the skin, lungs, kidneys, lymph nodes, bladder, oesophagus, and urinary tract. This medicine is indicated when the cancer has recurred after treatment using medicines, surgery, and radiation. It is a medication that helps the immune system fight cancer more effectively. 

It works by targeting and inhibiting specific molecules that can suppress or weaken the immune system's ability to recognise and attack cancer cells. By blocking these molecules, it helps to enhance the immune response against cancer and potentially shrink or slow the growth of tumours. 

One of the benefits of it and other immunotherapy drugs is that they can produce long-lasting responses in some patients, even after the treatment is stopped. This contrasts with traditional chemotherapy and radiation therapy, which typically only provide temporary benefits and can have significant side effects. It is contraindicated in patients with a severe allergic reaction to the drug or its components. 

Opdyta Injection is also contraindicated in patients with certain autoimmune disorders, such as lupus or rheumatoid arthritis, because the drug can further stimulate the immune system and exacerbate these conditions. Additionally, it should be used cautiously in patients with a history of organ transplants.

Opdyta 40 mg uses are to treat:

• Advanced skin cancer
• Skin cancer that recurs after surgery
• Advanced non-small cell lung cancer
• Advanced kidney cancer
• Hodgkin’s lymphoma (lymph node disease)
• Advanced cancer of the head and neck
• Advanced urinary tract and bladder cancer
• Advanced esophageal cancer

The therapeutic effect of Opdyta 40mg Inj is to enhance the body's natural immune response to cancer cells. Cancer cells can often evade the immune system by producing proteins that bind to immune cells and prevent them from recognizing and attacking the cancer cells. It works by blocking the interaction between a protein called programmed death-1 (PD-1), found on the surface of immune cells, and its corresponding ligands. Doing so enables the immune system to recognize and attack cancer cells more effectively, helping to slow down or even stop cancer progression. In some cases, treatment with it can lead to long-lasting remission, even after treatment has ended. This is because the drug can stimulate the immune system to "remember" the cancer cells and continue to attack them even after the drug has been cleared from the body.

Inform your healthcare provider about all the medicines you take, including prescription medications, over-the-counter medications, nutritional or vitamin supplements, and herbal products. Certain medications may interact with Opdyta 40mg and reduce effectiveness by causing undesirable side effects.

• Opdyta 40mg Injection is typically supplied in vials or pre-filled syringes and should be stored at controlled room temperature between 20-25°C (68-77°F).
• The drug should be protected from light and should not be frozen.
• Once the vial or syringe is opened, any unused portion should be discarded. It is important to follow the manufacturer's instructions for handling and storage of it to ensure that the drug is effective and safe for use.
• Keep it out of reach from children and pets.

Opdyta 40mg Injection is a medication a healthcare professional administers, typically in a hospital or clinic setting. The medication is given as an intravenous (IV) injection by healthcare professional. The infusion typically takes several hours. You will be closely monitored during and after the infusion to ensure the medication works effectively and to watch for any side effects. The dosage and frequency of administration will depend on the condition being treated and your circumstances. Your healthcare provider will determine the appropriate dosage and schedule for you.

Side effects are unwanted symptoms caused by medicines. Even though all drugs cause side effects, not everyone gets them.

Serious:

• Pneumonitis (inflammation of lung tissue)
• Colitis (inflammation of the colon)
• Hepatitis (inflammation of the liver)
• Hypothyroidism
• Hyperthyroidism
• Adrenal insufficiency (a condition in which the adrenal glands do not produce enough hormones).
• Severe allergic reactions
• Infusion-related reactions
• Confusion
• Seizures
• Neuropathy
• Eye disorders (such as uveitis or iritis)

Common:

• Fatigue
• Nausea
• Skin rash
• Itching
• Loss of appetite
• Diarrhea
• Constipation
• Joint pain
• Headache

If you are considering or receiving Opdyta 40mg Injection treatment, it is important to discuss the potential risks and benefits of the treatment with your healthcare provider. It is also important to follow all safety precautions and guidelines provided by your healthcare provider to minimize any potential risks associated with treatment. Be sure to report any new or worsening symptoms to your healthcare provider promptly, as some side effects can be serious and require immediate medical attention. If you are a women of reproductive age, you should use effective contraception during and for at least 5 months after the last dose of it to avoid potential harm to a developing fetus. Remember to take care of yourself and prioritise self-care during treatment. This can include eating a healthy diet, getting enough rest, and seeking support from loved ones or support groups.

1. Harrison's Principles of Internal Medicine. 20th edition, 2018, 929-932
2. Bristol-Myers Squibb, U.S. Food and Drug Administration, Nivolumab, [ Last updated, 4 April 2023]. [ Accessed on 4 April] https://www.accessdata.fda.gov/drugsatfda_docs/label/2022/125554s114lbl.pdf.
3. Goodman & Gilman's The Pharmacological Basis of Therapeutics. 12th edition, 2011,1655-1660
4. Takeda UK Ltd, Electronic Medicines Compendium (emc), Opdivo 10 mg/mL concentrate for solution for infusion, [Last updated: 30 October 2020], [Accessed on 4 April 2023], https://www.medicines.org.uk/emc/product/6154/smpc