Epivir A/F
Generic name: Lamivudine
Drug class:
Nucleoside reverse transcriptase inhibitors (NRTIs)
Usage of Epivir A/F
Lamivudine is used in combination with other medicines for the treatment of the infection caused by the human immunodeficiency virus (HIV). HIV is the virus that causes acquired immune deficiency syndrome (AIDS).
Lamivudine will not cure or prevent HIV infection or AIDS. It helps keep HIV from reproducing and appears to slow down the destruction of the immune system. This may help delay the development of serious health problems usually related to AIDS or HIV disease from occurring. Lamivudine will not keep you from spreading HIV to other people. People who receive this medicine may continue to have other problems usually related to AIDS or HIV disease.
Lamivudine is also used to treat chronic (long-term) hepatitis B virus (HBV) infection.
This medicine is available only with your doctor's prescription.
Epivir A/F side effects
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:
Incidence not known
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
More common
Incidence not known
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
Before taking Epivir A/F
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:
Allergies
Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
Pediatric
Appropriate studies performed to date have not demonstrated pediatric-specific problems that would limit the usefulness of lamivudine for the treatment of HIV infection in children 3 months of age and older. However, safety and efficacy have not been established in children younger than 3 months of age.
Appropriate studies performed to date have not demonstrated pediatric-specific problems that would limit the usefulness of lamivudine for the treatment of chronic hepatitis B infection in children 2 to 17 years of age. However, safety and efficacy have not been established in children younger than 2 years of age.
Geriatric
Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of lamivudine in the elderly. However, elderly patients are more likely to have age-related kidney, liver, or heart problems, which may require caution and an adjustment in the dose for patients receiving lamivudine.
Breast Feeding
There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.
Interactions with Medicines
Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.
Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
Interactions with Food/Tobacco/Alcohol
Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.
Other Medical Problems
The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:
Relate drugs
- Adefovir
- Abacavir
- Baraclude
- Didanosine
- Emtricitabine
- Emtriva
- Entecavir
- Epivir
- Epivir A/F
- Epivir HBV
- Hepsera
- Lamivudine
- Retrovir (Zidovudine Intravenous)
- Retrovir (Zidovudine Oral)
- Retrovir oral/injection
- Stavudine
- Telbivudine
- Tenofovir
- Tenofovir alafenamide
- Tyzeka
- Vemlidy
- Videx
- Videx EC
- Videx Pediatric
- Viread
- Zerit
- Ziagen
- Zidovudine (Intravenous)
- Zidovudine (Oral)
- Zidovudine oral/injection
How to use Epivir A/F
Take this medicine exactly as directed by your doctor. Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered.
This medicine comes with a patient information leaflet. Read and follow the instructions carefully. Ask your doctor if you have any questions.
Epivir® and Epivir-HBV® both contain the same medicine, but Epivir® has more medicine in each tablet or dose of liquid. Use only the brand of this medicine that your doctor prescribed. If you have HIV or AIDS, you need to use Epivir®. If you have hepatitis B but you do not have HIV or AIDS, you can use Epivir-HBV®.
Your doctor may want to test you for HIV before you start using Epivir-HBV® and during your treatment. Your medicine may need to be changed based on these test results.
It is important to take Epivir® as part of a combination regimen. Take all of the medicines your doctor prescribed at the right time of day. This will make your medicines work better.
Keep using lamivudine for the full time of treatment, even if you or your child begin to feel better. Do not stop using it without checking first with your doctor. When your supply of the medicine is running low, contact your doctor or pharmacist ahead of time. Do not allow yourself to run out of the medicine.
If you are using the oral liquid, use a specially marked measuring spoon, dosing syringe, or medicine cup to measure each dose accurately. The average household teaspoon may not hold the right amount of liquid.
Dosing
The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
Note: Patients that require treatment for both hepatitis B and either AIDS or HIV should follow the dosing schedule for HIV or AIDS.
Missed Dose
If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
Storage
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
Ask your healthcare professional how you should dispose of any medicine you do not use.
Warnings
It is very important that your doctor check your or your child's progress at regular visits to make sure that this medicine is working properly. Blood and urine tests may be needed to check for unwanted effects.
Do not use this medicine if you or your child is also taking zalcitabine or medicines containing emtricitabine or lamivudine (eg, Atripla®, Combivir®, Complera®, Emtriva®, Epzicom®, Stribild®, Trizivir®, Truvada®). Tell your doctor right away if you are using any of these medicines.
Two rare but serious reactions to this medicine are lactic acidosis (build-up of acid in the blood) and liver toxicity, including an enlarged liver. These are more common if you are female, very overweight (obese), or have been taking anti-HIV medicines for a long time. Call your doctor right away if you or your child has stomach discomfort or cramping, nausea, vomiting, or diarrhea, a decreased appetite, a general feeling of discomfort, muscle cramping or pain, unusual tiredness or weakness, trouble breathing, or yellow skin or eyes.
This medicine may cause worsening of hepatitis B infection when treatment is stopped. Talk to your doctor if you have any concerns about this.
Pancreatitis may occur while you are using Epivir®. Tell your doctor right away if you or your child has sudden and severe stomach pain, chills, constipation, nausea, vomiting, fever, or lightheadedness.
Your immune system may get stronger when you start using Epivir®. This could cause a hidden infection in your body to become active. Tell your doctor right away if you or your child notice any changes in your health.
Lamivudine does not decrease the risk of transmitting HIV infection or hepatitis B infection to others through sexual contact or by contamination through blood. HIV or hepatitis B may be acquired from or spread to others through infected body fluids, including blood, vaginal fluid, or semen. If you are infected, it is best to avoid any sexual activity involving an exchange of body fluids with other people. If you do have sex, always wear (or have your partner wear) a condom (“rubber”). Only use condoms made of latex or polyurethane and use them every time you have contact with semen, vaginal secretions, or blood. Also, do not re-use or share needles or equipment with anyone. If you have any questions about this, check with your doctor.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.
Disclaimer
Every effort has been made to ensure that the information provided by Drugslib.com is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Drugslib.com information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Drugslib.com does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Drugslib.com's drug information does not endorse drugs, diagnose patients or recommend therapy. Drugslib.com's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners.
The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Drugslib.com does not assume any responsibility for any aspect of healthcare administered with the aid of information Drugslib.com provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.
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