Doravirine tablets (Pifeltro) for HIV control - what you need to know

Has your doctor prescribed you a pill called Doravirine to control your HIV infection ? If so, you probably have a lot of questions about this medication. You might be wondering, 'What does this actually do?', 'How exactly do I use it?', 'Will it cause side effects ?' Don't worry, it's very normal. It's natural to have questions like these when starting a new medication. Let's talk about all of this simply, in a way that you can understand and be clear about.

What is this medicine called Doravirine?

Simply put, Doravirine is a medication that helps manage the symptoms of HIV infection. You'll usually find it under the brand name Pifeltro.

This medicine works by limiting the spread of the HIV virus inside your body, that is, by limiting the multiplication of the virus. Think of our body as a country, and the HIV virus is like an enemy that has entered that country. This medicine works by reducing the ability of that enemy to spread further and take over the country.

Also, even while you are taking this medicine, there is still a chance that you can pass on the HIV virus to someone else, that is, be infected. This medicine also does not protect you from other sexually transmitted infections ( STIs ). Therefore, you should continue to follow safe methods.

Things you need to tell your doctor before starting medication

Before your doctor prescribes this medication, he or she needs to have a complete picture of your health condition. That's how he or she can determine whether this medication is right for you. So, if any of the following apply to you, be sure to talk to your doctor about it.

• If you have any liver disease: The liver is the main organ that cleans and processes the drugs in our body. So, special care should be taken when giving this medicine to someone with liver problems.
• If you have had an allergic reaction to doravirine or any other medicine, food, or dye: It is very important to tell your doctor if you have had any allergies in the past. This will help your doctor assess the risks you may be exposed to.
• If you are pregnant or planning to become pregnant: We need to think twice about every medication we take during pregnancy, as it can affect the baby.
• If you are a breastfeeding mother: Some medications can pass to your baby through breast milk. Therefore, you should inform your doctor about this as well.

How exactly do I use this medicine?

To get the most out of this medicine, it is essential to use it correctly.

• Take this pill with a glass of water.
• You can take this with or without food. However, if you sometimes experience stomach upset when taking it without food, it is best to take it with a meal.
• The most important thing is to take your medicine every day, at the right time, as prescribed by your doctor. Never skip a dose.

Why is it not a good idea to skip a dose of medication?

Think about the enemy we talked about earlier. When we take our medicine every day, we can keep that enemy under control. But if we skip doses, that enemy has a chance to get stronger again and to adapt to the medicine that is coming against it. If that happens, the HIV virus can become resistant not only to this medicine, Doravirine, but also to other HIV medicines. That can have a big impact on your entire treatment process. So, keep taking your medicine as it is until your doctor tells you to stop.

Can this medicine be given to children?

In some special cases, this medicine can also be prescribed to children. However, this decision is made by a pediatrician. Special precautions must be followed in this regard.

What to do if you take too much medicine?

If you suspect you have taken more medicine than you think, contact the National Poisons Information Centre at the National Hospital in Colombo immediately. Or, go to the Emergency Treatment Unit (ETU) at your nearest hospital. Do not try to treat this yourself at home.

Other medications that may interact with this medicine

This is something to be very careful about. Some medications, when taken with Doravirine, can reduce, increase, or cause serious side effects. So tell your doctor about all the medications you are taking, not just the ones prescribed by your doctor, but also the over-the-counter medications, herbal remedies, and vitamins you buy from the pharmacy.

Be especially careful with the medications in the table below.

This list is not complete. So it's safest to tell your doctor about everything you take. Also, tell him if you smoke, drink alcohol, or use other drugs.

Side effects you may experience

Like any medicine, Doravirine can cause side effects in some people. However, not everyone gets them. However, it is important to know what these side effects are so that you can take action quickly if you notice any changes.

If you notice anything unusual that is not mentioned on this list, talk to your doctor about it as well.

How to take care of the medicine?

• Keep out of reach of children and pets.
• Store at normal room temperature (between 20 and 25 degrees Celsius).
• Keep the medicine in the original bottle it came in. Protect it from moisture. Keep the bottle tightly closed.
• You may have noticed that some medicine bottles have a small packet inside. Don't remove it. It's there to absorb moisture inside the bottle and keep the medicine dry.
• Do not use medication that has passed its expiration date.

How do you get rid of unused medicine?

It's not a good idea to just throw expired or unwanted medications in the trash or down the toilet. Ask your doctor or hospital pharmacy for advice. Sometimes there may be programs that take them back. Otherwise, they can tell you how to safely dispose of them.

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