Hello! Today we are going to talk about a somewhat complicated, but very important medicine. If you or someone in your family has a condition called Cystic Fibrosis, your doctor may have prescribed a medicine called Trikafta. It contains a combination of three drugs called Elexacaftor, Tezacaftor, and Ivacaftor. This is not like a regular medicine, but a specialized medicine that goes to the root cause of the disease and affects it. So let's see how exactly this medicine is used, what things to be careful about, and what side effects it can cause.
What really happens with this medicine?
Simply put, Cystic Fibrosis is a genetic disorder that causes various body fluids, especially mucus in organs like the lungs and pancreas, to become excessively thick and sticky. This can lead to breathing difficulties, lung infections, and digestive problems.
This drug, Trikafta, works by partially correcting a protein that is not working properly in patients with a specific genetic mutation called F508del . This means that rather than controlling the symptoms, it helps reduce the impact of the underlying genetic defect that causes the disease. This is really a big relief for these patients.
Things you need to tell your doctor before starting medication
It is very important for your doctor to know your complete health history before prescribing this medication. This medication is not suitable for everyone. Be sure to tell your doctor, especially if you have any of these conditions:
- If you have any kidney disease .
- If you have any liver disease (this is very important).
- If you have allergies to Elexacaftor, Tezacaftor, Ivacaftor, or any other medicine, food, or dye contained in this medicine.
- If you are pregnant or planning to have a baby in the near future.
- If you are a breastfeeding mother.
Based on this information, your doctor will decide whether this medication is right for you or whether the dosage needs to be changed.
How exactly do I use this medicine?
To get the most out of this medicine, it is essential to take it as directed.
The most important thing is to always take this medicine with a meal containing oil or fat , because the medicines in this medicine are best absorbed by the body when combined with fat.
For example, you can take this medicine:
- With eggs
- With peanut butter
- With a dish with cheese (e.g. cheese pizza)
- With avocado
- With yogurt (full-fat yogurt)
Other things to remember:
- Swallow the pills whole . Do not break or crush them, or chew them like chewing gum.
- Try to take your medicine at the same time every day. Once you make this a habit, you won't forget.
- Never take this medicine with grapes or grapefruit juice. The ingredients in grapefruit juice can seriously affect the way this medicine works.
- Do not stop taking your medication until your doctor tells you to.
- This medicine is sometimes prescribed to children over the age of 6, but only under special medical supervision.
What if I accidentally take too much medicine?
If you think you have taken too much of this medicine, do not panic. Immediately call the National Poisons Information Centre at the Colombo National Hospital . Or go to the Emergency Treatment Unit (ETU) of the nearest hospital. It is best if you can take the medicine packet with you when you go.
Things not to use with this medicine
Trikafta is a powerful drug that can interact with other medications. Therefore, you should tell your doctor about all the medications you are taking, not just those prescribed by your doctor, but also over-the-counter medications, vitamins, and herbal products.
| Drugs and foods that may interact with Trikafta | |
|---|---|
| Avoid taking Trikafta with these | |
| Some medications for epilepsy | Carbamazepine, Phenobarbital, Phenytoin |
| Antibiotics | Rifampin, Rifabutin |
| Herbal products | St. John's Wort |
| Food | Grapefruit and grapefruit juice |
| Ask your doctor if you are taking Trikafta with these. | |
| Other antibiotics | Clarithromycin, Erythromycin |
| Antifungals | Fluconazole, Itraconazole, Ketoconazole |
| Immune-suppressing drugs | Cyclosporine, Sirolimus, Tacrolimus |
| Other | Digoxin, Warfarin, some medications for diabetes (e.g. Glimepiride, Glipizide) |
What are the possible side effects of taking the medicine?
Like any medicine, Trikafta can cause some side effects. Some of these can be serious. So it is very important to be aware of this.
| Side effect | Description and what to do |
|---|---|
| Serious side effects that should be reported to your doctor immediately | |
| Symptoms of liver damage | Dark yellow or brown urine, yellowing of the eyes or skin, pain in the upper right part of the stomach, loss of appetite, nausea, unusual tiredness. If you notice these, tell your doctor immediately. |
| Severe allergic reactions | Skin rash, itching, swelling of the face, lips or tongue, difficulty breathing. This is an emergency. |
| Changes in eyesight | Report any changes to your doctor , such as clouding of the whites of your eyes (cataracts) or blurred vision. |
| Low blood sugar (Hypoglycemia) | Restlessness, confusion, dizziness, excessive hunger, excessive sweating, tremors, and rapid heartbeat. |
| Side effects that are usually not serious, but should be reported to the doctor if they persist | |
| Digestive system problems | Stomach ache, diarrhea, gas. |
| Common symptoms | Headache, dizziness, fever, sinus congestion. |
| Especially for women | Pain during menstruation. |
If you have any other unusual symptoms that are not on this list, tell your doctor about them as well.
Take-Home Message
- Trikafta is a very important medicine for Cystic Fibrosis that affects the root cause of the disease.
- This medicine should be taken with a meal containing oil or fat . Avoid taking it on an empty stomach.
- Never take this medicine with grapefruit juice. Also, tell your doctor about all other medicines you are taking.
- Seek immediate medical attention if you develop symptoms of liver damage (yellowing of the eyes, dark urine) or a severe allergic reaction.
- Meet the doctor on the scheduled date and do not miss the blood and eye tests he prescribes.
- This medicine is for you only. Never share it with others.
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