Have you been prescribed Valganciclovir by a doctor? Or is a family member or friend taking it? If so, it's important for you to learn a little more about it. It's always good to have a little understanding of any medication before taking it.
What is Valganciclovir?
Simply put, Valganciclovir is an antiviral medicine . That is, it helps fight certain types of viruses that enter our bodies and control the damage they cause. You may have seen this medicine under the brand name ``Valcyte``.
In particular, there is a type of virus called Cytomegalovirus (CMV) . This virus can cause infections in our eyes (CMV retinitis), as well as infections in other parts of the body (for example, lungs, intestines). Valganciclovir is most commonly used to treat such infections and to prevent new infections.
When is this medicine given?
As I said before, this medicine is mainly used for CMV infections.
- Treat eye infections (CMV retinitis) caused by CMV.
- To prevent or treat the spread of CMV infection to other parts of the body.
- In some cases, this medicine is also given to people who have had an organ transplant to reduce the risk of developing CMV infection.
However, a doctor may prescribe this medication for other medical reasons besides those mentioned above. Therefore, if you have any questions about why you have been prescribed this medication, it is best to ask your doctor or pharmacist.
What are the things you need to tell the doctor before taking the medicine?
Before you start taking Valganciclovir, it is important to tell your doctor or the pharmacist who dispenses the medicine these things . This is because the doctor will use this information to decide whether this medicine is right for you, what dose to give you, and what other things you need to be careful about.
- If you have kidney disease: Your kidneys are the ones that help filter out waste products and keep your body clean. If your kidneys are weak or have a disease, things like this medicine may not be properly excreted from your body. Then the medicine may accumulate in your body and cause problems. That's why it's important to tell your doctor about this.
- If you have low blood counts of white blood cells, platelets, or red blood cells: This medicine can sometimes make the number of these cells in your blood even lower. Therefore, if you already have such a condition, it is very important that your doctor is aware of it.
- Tell your doctor if you have had an allergic reaction to ganciclovir, valganciclovir, any other medicine, food, dyes, or preservatives.
- If you are pregnant, or trying to get pregnant. This is a very important point, we will talk about this in more detail later.
- If you are breastfeeding.
Discussing these things with your doctor will go a long way in helping you receive treatment safely.
How exactly do I use this medicine?
When using this medicine, it is best to follow the instructions exactly as directed. Only then will you be able to fully benefit from the medicine and minimize side effects.
- These pills should be taken with a glass of water .
- Follow the instructions on the doctor's prescription label exactly .
- This medicine should be taken with food . Otherwise, do not take it on an empty stomach.
- Do not chew or crush these tablets. Swallow the tablet whole. Doing so may affect the effectiveness of the medicine.
- If a tablet is accidentally broken, do not touch it with your bare hands . If such broken tablets come into contact with your skin, immediately wash the area thoroughly with soap and water . This medicine can sometimes be harmful to the skin.
- Try to take your medications on time, at the same time every day .
- Do not take more medicine than the doctor tells you to.
- Even if you feel better, take the medicine for the full duration prescribed by your doctor . Do not stop taking it halfway through. Doing so may cause the infection to come back.
- Do not skip doses .
Do I need to be especially careful if I give this medicine to children?
Yes, there are cases where this medicine is given to young children. It can be recommended for babies as young as one month old, under special circumstances . However, there are some things to be careful about when giving it to children. Therefore, talk to your pediatrician about this and follow his instructions exactly. Give the medicine to the child exactly as the doctor says, in the amount he says.
What happens if you take too much medicine? (Overdosage)
If you think you or someone else has taken too much of this medicine, call your nearest poison control center or emergency room immediately . It is very important.
Important note: This medicine has been prescribed for you only. Never give your medicine to others , even if they have the same symptoms you have. It may harm them.
What if I miss a dose?
Oh, sometimes you miss a dose. If that happens, take the missed dose as soon as you remember . However, if it is very close to your next dose when you remember (for example, it is only a few hours away), skip the missed dose and take your next dose at the scheduled time . Never take a double dose , which means taking the missed dose and the next dose at the same time. Doing so can cause side effects.
Does this medication interact with other medications? (What may interact with this medication?)
Yes, this medicine called Valganciclovir can interact with some other medicines you are taking. This means that it may change the way other medicines work, change the way Valganciclovir works, or increase side effects.
For example:
- Amphotericin B
- Some cancer medications (e.g., adriamycin, doxorubicin, vinblastine, vincristine)
- Some medicines used to treat HIV infection (e.g. didanosine, zidovudine)
- Cyclosporine
- Dapsone
- Flucytosine `(flucytosine)`
- Hydroxyurea `(hydroxyurea)`
- Imipenem; cilastatin `(imipenem; cilastatin)`
- Mycophenolate mofetil `(mycophenolate mofetil)`
- Pentamidine `(pentamidine)`
- Probenecid `(probenecid)`
- Sulfamethoxazole; trimethoprim `(sulfamethoxazole; trimethoprim)`
- Tacrolimus
This list is not exhaustive. There may be other medications. Therefore, be sure to tell your doctor about all the medications you are taking (prescribed by your doctor, purchased over-the-counter, herbal remedies, vitamins, dietary supplements), and if you smoke, drink alcohol, or use other illegal drugs . Some of these may interact with this medication.
What other things should we be aware of when taking this medicine?
There are a few things you need to be careful about when taking this medicine.
Medical tests and eye exams...
- While taking this medicine, your doctor will need to see you regularly (regular check-ups) . They will also need to do some important blood work . This will check how the medicine is affecting your body and whether it has affected your blood cells.
- If you have an eye infection (CMV retinitis) caused by CMV, you should have your eyes checked at least every 4 to 6 weeks .
Don't forget to drink plenty of water...
While taking this medication, drink at least 6 to 8 glasses of water a day . Drinking plenty of fluids can help prevent some of the side effects that may occur with the medication.
Be careful of drowsiness and dizziness...
- This medicine may make you feel drowsy or dizzy . Therefore, avoid driving, operating machinery, or doing anything that requires concentration until you know exactly how this medicine affects you.
- Be careful when you get up from a sitting position or sit down from a standing position . This can reduce the risk of dizzy or fainting spells, especially if you are an older patient.
Special awareness about pregnancy (for women and men)
This is a very important matter, so listen carefully.
- For women:
- If you are expecting a baby, or if you think you may be pregnant, you should tell your doctor immediately .
- Do not become pregnant while taking this medicine.
- If you are a woman of childbearing potential, you should use effective birth control while taking this medication and for at least 30 days after stopping the medication.
- This medicine may have serious side effects on an unborn child. Ask your doctor or pharmacist for more information.
- For men:
- Men should also be aware of this. It is not advisable to father a child while taking this medicine .
- If you have sex with a partner who is able to get pregnant, you should use a condom while taking the pill and for at least 90 days after stopping the pill.
- This is to prevent possible harm to the unborn child. Ask your doctor for more information about this.
What side effects may I notice?
Like any medicine, Valganciclovir can cause some side effects. However, not everyone gets them. There are some side effects, and if you notice them, you should go to your doctor or a hospital immediately.
Serious side effects that should be reported to the doctor immediately:
If you experience any of these symptoms, seek medical advice without delay .
- Allergic reactions such as: skin rash, itching or hives, swelling of the face, lips, or tongue.
- Breathing problems.
- Changes in vision.
- Feeling faint or lightheaded, falls.
- Fever or chills, sore throat.
- Hallucinations, loss of contact with reality.
- Pain, tingling, numbness in the hands or feet.
- Seizures.
- Signs and symptoms of kidney injury: trouble passing urine or a change in the amount of urine.
- Suicidal thoughts or other mood changes.
- Unusual bleeding or bruising.
- Feeling unusually weak or tired.
Side effects that are usually not serious, but should be reported to the doctor if they persist:
These side effects are usually not serious, but if they persist or bother you, tell your doctor.
- Constipation
- Cough
- Diarrhea
- Loss of appetite
- Nausea, vomiting
- Stomach pain
- Insomnia (trouble sleeping)
This list may not include all side effects. If you notice anything unusual, talk to your doctor about it. If you want, you can also report side effects to the FDA (1-800-FDA-1088).
Where should I keep my medication?
- Keep this medicine out of the reach of children and out of their reach . This is very important.
- Store at room temperature, between 15 and 30 degrees Celsius (59 to 86 degrees F). Do not expose to extreme heat, cold, or moisture.
- Do not use expired medications . Dispose of them properly.
The most important things for you to remember (Take-Home Message)
Okay, so now you have a good understanding of the Valganciclovir drug we talked about. Finally, remember these points again:
- Follow your doctor's instructions exactly. Take the medicine as directed, at the time, and for the duration prescribed.
- Be sure to tell your doctor about any other medical conditions you have and any other medications you are taking.
- When taking the medicine , take it with food and drink plenty of water.
- Follow the pregnancy advice (for both women and men) exactly. This is very important.
- If you experience any serious side effects, seek medical advice immediately.
- If you have any further questions about this medicine, don't hesitate to ask your doctor or pharmacist .
Please remember that this article is for general information only. It should not be considered medical advice. Your doctor's advice is always the most important.
Wishing you a speedy recovery!
` valganciclovir, cytomegalovirus, CMV, antiviral, side effects, medication, Valcyte
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