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Ritonavir Coupon - Ritonavir 100mg tablet
Ritonavir

Norvir

RITONAVIR is an antiretroviral medicine. It is used with other medicines to treat HIV. This medicine is not a cure for HIV. It will not stop the spread of HIV to others. Compare HIV protease inhibitors.
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Ritonavir Coupon - Ritonavir 100mg tablet
Norvir
(brand)
100mg
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What is Ritonavir?

Commonly Used Brand Name(s)Norvir

Therapeutic ClassificationsAntiretroviral Agent

Pharmacologic ClassificationsProtease Inhibitor

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Blackbox WarningTOP

Oral route (Capsule, Liquid Filled;Solution;Tablet)

Coadministration of ritonavir with several classes of drugs including sedative hypnotics, antiarrhythmics, or ergot alkaloid preparations may result in potentially serious or life-threatening adverse events due to possible effects of ritonavir on the hepatic metabolism of certain drugs. Review medications taken by patients prior to prescribing ritonavir or when prescribing other medications to patients already taking ritonavir .

OverviewTOP

Ritonavir is used alone or 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).

Ritonavir will not cure HIV infection or prevent AIDS. It helps keep HIV from reproducing and appears to slow down the destruction of the immune system. This may help delay problems that are usually related to AIDS or HIV disease from occurring. Ritonavir will not keep you from spreading HIV to other people. People who receive this medicine may continue to have other problems related to AIDS or HIV disease.

This medicine is available only with your doctor's prescription.

Proper UseTOP

Take this medicine exactly as directed by your doctor. Do not change the dose or stop using this medicine without checking first with your doctor. When your supply of this medicine is running low, contact your doctor or pharmacist ahead of time. Do not allow yourself to run out of this medicine.

Read and carefully follow the patient information leaflet before starting ritonavir treatment and each time you refill. Ask your doctor or pharmacist if you have any questions.

It is important that ritonavir be taken with food.

Swallow the capsule or tablet whole. Do not break, crush, or chew it.

For patients taking the oral liquid:

  • Shake the bottle well before using.
  • Use a specially marked measuring syringe or cup to measure each dose accurately. The average household teaspoon may not hold the right amount of liquid.
  • You can mix the oral liquid with chocolate milk or nutritional drinks (such as Ensure® or Advera®) to make it taste better. You should drink this medicine within one hour of mixing.

This medicine works best when there is a constant amount in the blood. To help keep blood levels constant, do not miss any doses. It is best to take the doses at evenly spaced times, day and night. For example, if you are to take two doses each day, the doses should be spaced about 12 hours apart. If you need help in planning the best times to take your medicine, check with your doctor.

Ritonavir must be taken with other medicines. Tell your doctor about all of the medications you are taking since the dose of ritonavir or other medications you take may need to be adjusted.

DosingTOP

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.

  • For treatment of HIV infection:
    • For oral dosage forms (capsules, solution, or tablets):
      • Adults—600 milligrams (mg) 2 times per day.
      • Children 1 month of age and older—Dose is based on body size and must be determined by your doctor. The dose is usually 350 to 400 milligrams per square meter (mg/[m]2) of body size 2 times per day. However, the dose is usually not more than 600 mg two times per day.
      • Children younger than 1 month of age—Use and dose must be determined by your doctor.

Missed DoseTOP

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.

Use & StorageTOP

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.

Store the capsules in the refrigerator or at room temperature in a closed container. If stored at room temperature, use the medicine within 30 days. Keep away from heat and direct light.

Store the oral liquid or tablets in a closed container at room temperature, away from heat and direct light. Do not refrigerate.

Before UsingTOP

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:

AllergiesTOP

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.

PediatricTOP

Appropriate studies have not been performed on the relationship of age to the effects of ritonavir in children younger than 1 month old. Safety and efficacy have not been established.

GeriatricTOP

Although appropriate studies on the relationship of age to the effects of ritonavir have not been performed in the geriatric population, geriatric-specific problems are not expected to limit the usefulness of ritonavir in the elderly. However, elderly patients are more likely to have age-related liver, kidney, or heart problems, which may require caution and an adjustment in the dose for patients receiving ritonavir.

PregnancyTOP

Pregnancy CategoryExplanation
All TrimestersBAnimal studies have revealed no evidence of harm to the fetus, however, there are no adequate studies in pregnant women OR animal studies have shown an adverse effect, but adequate studies in pregnant women have failed to demonstrate a risk to the fetus.

Breast FeedingTOP

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.

Drug InteractionsTOP

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 not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.

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.

Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

Other InteractionsTOP

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 ProblemsTOP

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:

  • Diabetes or
  • Hyperglycemia (high blood sugar)—May increase the amount of sugar in the blood.
  • Heart disease or
  • Heart rhythm problems (eg, prolonged PR interval) or
  • Hyperlipidemia (high cholesterol or fat in the blood) or
  • Liver disease or other liver problems (eg, hepatitis B or C) or
  • Pancreatitis (inflammation of the pancreas)—Use with caution. May make these conditions worse.

PrecautionsTOP

It is very important that your doctor check the progress of you or your child at regular visits to make sure this medicine is working properly. Blood tests may be needed to check for unwanted effects.

Do not take other medicines unless they have been discussed with your doctor. This includes prescription and nonprescription (over-the-counter [OTC]) medicines, and herbal (eg, St. John's wort) or vitamin supplements.

Do not use this medicine if you or your child are also using alfuzosin (Uroxatral®), amiodarone (Cordarone®), astemizole (Hismanal®), bepridil (Vascor®), cisapride (Propulsid®), colchicine (Colcrys®), dronedarone (Multaq®), ergot medicines (eg, dihydroergotamine, ergotamine, methylergonovine, Cafergot®, or Ergomar®), flecainide (Tambocor®), lovastatin (Altocor®, Mevacor®), lurasidone (Latuda®), oral midazolam (Versed®), pimozide (Orap®), propafenone (Rythmol®), quinidine (Quinaglute®), sildenafil (Revatio®), simvastatin (Simcor®, Vytorin®, Zocor®), terfenadine (Seldane®), triazolam (Halcion®), or voriconazole (Vfend®). Using these medicines together with ritonavir may increase your chance of having serious side effects.

Check with your doctor right away if you or your child have pain or tenderness in the upper stomach, pale stools, dark urine, loss of appetite, nausea, unusual tiredness or weakness, or yellow eyes or skin. These could be symptoms of a serious liver problem.

Pancreatitis may occur while you are using this medicine. Check with your doctor right away if you or your child have sudden and severe stomach pain, chills, constipation, nausea, vomiting, fever, or lightheadedness.

This medicine may decrease the effects of some birth control pills. To avoid getting pregnant, use an additional form of birth control along with your pills. Other forms of birth control include condoms, a diaphragm, or contraceptive foam or jelly.

This medicine may cause serious allergic reactions, including anaphylaxis, angioedema, or certain skin conditions (Stevens-Johnson syndrome). These reactions can be life-threatening and require immediate medical attention. Call your doctor right away if you have a rash, itching, blistering, peeling, or loosening of the skin, fever or chills, trouble breathing or swallowing, or any swelling of your hands, face, mouth, or throat while you are using this medicine.

Serious skin reactions can occur with this medicine. Check with your doctor right away if you or your child have any of the following symptoms while taking this medicine: blistering, peeling, or loosening of the skin, fever, chills, cough, diarrhea, itching, joint or muscle pain, rash, red skin lesions, often with a purple center, sore throat, sores, ulcers, or white spots in the mouth or on the lips, swelling of your hands, face, tongue, or throat, or unusual tiredness or weakness.

This medicine may increase the level of cholesterol and fats in your blood. If this condition occurs, your doctor may give you a medicine to lower the cholesterol and fats. Talk to your doctor if you or your child have concerns.

This medicine will not keep you from giving HIV to your partner during sex. Make sure you understand this and practice safe sex, even if your partner also has HIV, by using a latex condom or other barrier method. This medicine will also not keep you from giving HIV to other people if they are exposed to your blood. Do not re-use or share needles with anyone.

When you start taking HIV medicines, your immune system may get stronger. If you have infections that are hidden in your body, such as pneumonia or tuberculosis, you may notice new symptoms when your body tries to fight them. If this occurs, be sure to tell your doctor.

This medicine may cause you to have excess body fat. Tell your doctor if you or your child notice changes in your body shape, such as an increased amount of fat in the upper back and neck, or around the chest and stomach area. You might also lose fat from the legs, arms, and face.

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