Rasonque (daraxonrasib) is prescribed to treat advanced pancreatic cancer. While Rasonque can be an effective treatment, it can interact with other medicines and substances.
An interaction occurs when a substance changes how a medicine works or affects the body. Understanding these interactions can help lower the risk of side effects and allow your medicine to work as intended while avoiding unsafe combinations.
This article does not include all possible interactions of Rasonque. Always tell your health care provider and pharmacist about all prescription drugs, over-the-counter medicines, and any vitamins, herbs, or other supplements you use.
Understanding Rasonque Interactions
After you take Rasonque, your body breaks it down using an enzyme in your liver and gut. Rasonque is also moved in and out of your cells by a protein called a transporter. Some medicines, supplements, and foods change how these systems work.
Some medicines, supplements, or foods can slow the breakdown of Rasonque or block its transporter. This can raise the amount of Rasonque in your body, increasing the risk of side effects. Other medicines can speed up the breakdown of Rasonque, which lowers the amount in your body and may make it less effective. Rasonque can also raise the levels of some other medicines, which may increase their side effects.
Below are more details about some Rasonque interactions.
1. Certain antifungal medicines
Some medicines used to treat fungal infections can slow the breakdown of Rasonque, causing it to build up in your body and raising the risk of side effects. Examples include:
- Fluconazole
- Itraconazole
- Voriconazole
Depending on the medicine, your provider may lower your Rasonque dose or may tell you to avoid the combination and choose a different option. Do not start or stop an antifungal without talking to your care team.
2. Some heart or blood pressure medicines
Certain medicines used for heart conditions or high blood pressure can raise the level of Rasonque in your body. Examples include quinidine and verapamil.
If you take one of these, your provider may lower your Rasonque dose. Do not change your heart or blood pressure medicine on your own.
3. Medicines that can make Rasonque less effective
Some medicines speed up how quickly your body breaks down Rasonque. This lowers the amount in your body and may keep it from working as well against your cancer. Examples include:
- Certain seizure medicines, such as phenytoin
- Efavirenz, which is a medicine for HIV
- Modafinil, which is a medicine for certain sleeping problems
- Rifampin, which is a medicine commonly used to treat an infection called tuberculosis
Whenever possible, these combinations are avoided. If you must take one, your provider may increase your Rasonque dose to make up for the effect. Tell your care team about any of these medicines before you start Rasonque.
4. Cyclosporine
Cyclosporine is a medicine used to calm the immune system, such as after an organ transplant or for some other conditions. Rasonque and cyclosporine both attach to the same protein in your cells, and taking them together is not recommended. If you take cyclosporine, tell your provider so they can discuss other options with you.
5. Dabigatran
Rasonque can raise the levels of some other medicines that use the same transporter in the body, which may increase their side effects. One example is the blood thinner dabigatran; higher levels of this medicine could raise the risk of bleeding.
If you take dabigatran, your health care provider will likely recommend that you take it at least four hours apart from your Rasonque dose. They may also monitor you more closely or adjust your treatment.
Other Rasonque Interactions
Supplement interactions
Some supplements may interact with Rasonque. Though the product label does not mention St. John’s wort, it may interact with Rasonque.
St. John’s wort is an herbal supplement that some people take for mood support. But it may speed up how quickly your body breaks down Rasonque, which can lower the amount in your body.
Other herbal and dietary supplements may also cause interactions. Always tell your health care team about all supplements you take.
Food interactions
Certain foods may interact with Rasonque. For example, grapefruit or grapefruit juice may increase the risk of side effects. Grapefruit may slow the breakdown of Rasonque, raising its amount in your body.
Talk to your health care provider if you enjoy grapefruit or grapefruit juice to see if it is safe for you to have while taking Rasonque.
Frequently Asked Questions About Rasonque Interactions
Can I take over-the-counter pain relievers with Rasonque?
Check with your provider or pharmacist first. Rasonque can raise the risk of bleeding, and pain relievers known as NSAIDs, such as aspirin, ibuprofen, and naproxen, can also add to the risk of bleeding. This is especially important if you also take a blood thinner. Acetaminophen (Tylenol) is often used for pain or fever, but it is still best to confirm what is safe for you. Consult your health care provider before taking any over-the-counter pain relievers and ask which one you should use.
Can I take Rasonque with my other daily medicines?
Often. But the timing or dose may need to be adjusted for certain medicines. Give your care team and pharmacist a complete, up-to-date list of everything you take so they can check for interactions before you start a new medicine.
How to Avoid Rasonque Interactions
The following steps can help lower your risk of drug interactions while taking Rasonque:
- Take Rasonque exactly as prescribed.
- Keep an updated list of all medicines and supplements you use.
- Share your medication list with your health care team and pharmacist.
- Ask your health care provider before you start or stop any medicine, vitamin, or supplement.
- Properly dispose of unused or expired medicines to help prevent accidental use.
Your health care provider can help decide whether Rasonque is safe for you and if your treatment plan needs any changes to help avoid or manage interactions.
