Have you or someone close to you been prescribed treatment for HIV? If so, among the medications your doctor is giving you may be a medicine called Didanosine. When you hear this name, you may feel a little unfamiliar. But don't worry at all. This is an important medicine that will help you on your journey of living with HIV. Today, we will talk about this medicine, how it affects the body, how to use it correctly, and what you need to be especially careful about.
Simply put, what is Didanosine?
Didanosine, sometimes called ddI, is a drug in the antiretroviral class. This means that it works by fighting the HIV virus in your body.
Think of it this way: HIV is a virus that tries to spread rapidly inside the body, making copies of itself. What drugs like didanosine do is stop the virus from making copies of itself and spreading. It's like it's interfering with the virus's work.
The most important thing is that this medicine is not a cure for HIV. However, it can help control the virus in your body, keep your immune system strong, and help you live a healthy, long life.
This medicine is not usually given alone. In HIV treatment, doctors give it in combination with several other antiviral medicines. This cocktail of medicines can control the virus in different ways. Also, when taken correctly, it can significantly reduce , if not completely eliminate, the risk of you spreading HIV to someone else.
Things you need to tell your doctor before taking medication
For your safety and to get the most out of your medication, it is important to tell your doctor about your complete health history before starting didanosine. Be sure to tell your doctor about any of the following:
- Allergies: If you have had an allergic reaction to didanosine, or to any other medicine, food, or dye.
- Kidney or liver disease: If you have kidney disease or liver disease.
- Pancreatitis: If you have previously had pancreatitis, a condition in which the pancreas becomes inflamed.
- Numbness: If you have numbness, pain, or constant discomfort (tingling or numbness) in your hands or feet.
- Gout: If you have a condition called gout.
- Alcohol use: If you are a regular drinker, be honest with your doctor about it.
- Other conditions: If you have a rare condition like phenylketonuria.
- Pregnancy and breastfeeding: It is imperative to inform your doctor if you are pregnant, trying to become pregnant, or breastfeeding.
How to use the medicine correctly?
To get the most out of a medicine, you need to use it as directed. Remember these instructions carefully.
The best time to take the medicine
This medicine should always be taken on an empty stomach . That means:
- Take at least 30 minutes before meals.
- Otherwise, take it at least 2 hours after eating.
- Never take these pills with food, as this will prevent the medicine from being absorbed properly by the body.
Ways to take the pills
There are two ways to take these pills.
1. Chew and swallow: You can chew the tablets thoroughly until they are completely crushed and swallow them with a glass of water.
2. Dissolve and drink: Dissolve the tablets in one ounce (about two tablespoons) of water or clear apple juice only . Do not dissolve in any other beverage. Stir the tablets well until they dissolve, and drink them all at once. If you dissolve them in apple juice, you can keep them at room temperature for about an hour. However, if you cannot drink them within an hour, throw them away.
Don't forget: It is very important to take your medicine exactly as your doctor has prescribed, at the right time, and without missing a single dose . Do not stop taking your medicine even if you feel better. If you skip doses, the HIV virus can become resistant to this medicine and other medicines. If this happens, it will be very difficult to treat.
Should this medicine be given to children?
In some cases, this medicine can be prescribed to children as young as 2 weeks old. However, it requires special precautions. If your child is prescribed this medicine, discuss it thoroughly with your pediatrician and follow his or her instructions carefully.
What to do if the dose of medication is increased or a dose is missed?
Overdose
If you think you have taken too much medicine, don't delay. Go to the nearest hospital Emergency Department (ETU) immediately. Or call the National Poisons Information Centre at the Colombo National Hospital for advice.
Missed Dose
Take a dose as soon as you remember. However, if it is almost time for your next dose, skip the missed dose and take your next dose at the scheduled time. Do not take double or extra doses for any reason.
Other drugs that may interact with didanosine (Drug Interactions)
Some medications you take may interact with didanosine, reducing its effectiveness or increasing side effects, so be especially careful about this.
| Drugs that may interact with didanosine | |
|---|---|
| Do not take didanosine with this medicine. | |
| Allopurinol | Ribavirin |
| Stavudine | |
| Be especially careful if you take didanosine with this medicine. | |
| Antacids | Delavirdine |
| Ganciclovir | Hydroxyurea |
| Indinavir | Itraconazole |
| Ketoconazole | Methadone |
| Tenofovir | Some antibiotics, such as ciprofloxacin, levofloxacin, and tetracycline |
This list is not exhaustive, so it is important to tell your doctor about all medications, vitamins, herbal remedies, and even supplements you are taking.
What are the possible side effects of taking the medicine?
Like any medicine, didanosine can cause side effects in some people. Some of these can be dangerous, so it's important to be aware of them.
| Side Effect | What should you do? |
|---|---|
| Side effects that you should report to your doctor immediately | |
| Allergic reactions: skin rash, itching, swelling of the face, lips or tongue. | Seek medical advice immediately. |
| Severe stomach pain, nausea, and vomiting: These can be symptoms of pancreatitis. | Call your doctor immediately. |
| Symptoms of liver damage: dark yellow/brown urine, yellowing of the eyes or skin, pain in the upper right side of the stomach, extreme fatigue. | Call your doctor immediately. |
| Pain, numbness, or burning in the limbs. | Tell your doctor about this. |
| Difficulty breathing, dizziness, vision changes, fast or irregular heartbeat. | Seek medical advice immediately. |
| Symptoms of infection: fever, chills, sore throat, cough. | Tell your doctor about this. |
| Side effects that are usually not dangerous, but should be reported to the doctor if they persist | |
| Diarrhea | If these persist or bother you, tell your doctor. |
| Headache | |
| Changes in the way body fat is stored (increased fat around the waist and back or thinning of the face, arms, and legs) | |
Take-Home Message
- Didanosine is a drug that controls HIV, but it does not completely cure the disease.
- Always take this medicine on an empty stomach. Take it half an hour before meals or two hours after meals.
- Take the medicine as prescribed by the doctor, without skipping a single dose. Skipping doses can cause the virus to become resistant to the medicine.
- If you experience symptoms such as numbness in your limbs, severe stomach pain, or yellowing of the skin, inform your doctor immediately.
- Avoid drinking alcohol while taking this medicine.
- Be sure to tell your doctor about all other medications you are taking (including vitamins and traditional medicines).
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