You may already be infected with hepatitis B (a virus that infects the liver and may cause severe liver damage) but not have any symptoms of the disease. In this case, taking the combination of dasabuvir, ombitasvir, paritaprevir, and ritonavir may increase the risk that your infection will become more serious or life-threatening and you will develop symptoms. Tell your doctor if you have or ever had a hepatitis B virus infection. Your doctor will order a blood test to see if you have or ever had a hepatitis B infection. Your doctor will also monitor you for signs of hepatitis B infection during and for several months after your treatment. If necessary, your doctor may give you medication to treat this infection before and during your treatment with the combination of dasabuvir, ombitasvir, paritaprevir, and ritonavir. If you experience any of the following symptoms during or after your treatment, call your doctor immediately: excessive tiredness, yellowing of the skin or eyes, loss of appetite, nausea or vomiting, pale stools, stomach pain, or dark urine.
Keep all appointments with your doctor and the laboratory. Your doctor may order certain tests before, during, and after your treatment to check your body's response to the combination of dasabuvir, ombitasvir, paritaprevir, and ritonavir.
Talk to your doctor about the risk(s) of taking the combination of dasabuvir, ombitasvir, paritaprevir, and ritonavir.
Dasabuvir, ombitasvir, paritaprevir, and ritonavir is used alone or in combination with ribavirin (Copegus, Rebetol, Ribasphere) to treat chronic (long-term) hepatitis C infection (swelling of the liver caused by a virus). Dasabuvir is a non-nucleoside NS5B polymerase inhibitor. It works by decreasing the amount of HCV in the body. Ombitasvir is a hepatitis C virus (HCV) NS5A inhibitor. It works by stopping the virus that causes hepatitis C from spreading inside the body. Paritaprevir is a protease inhibitor. It works by decreasing the amount of HCV in the body. Ritonavir is a protease inhibitor. It helps to increase the amount of paritaprevir in the body so that the medication will have a greater effect.
The combination of dasabuvir, ombitasvir, paritaprevir, and ritonavir comes as extended-release (long-acting) tablets to take by mouth. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take dasabuvir, ombitasvir, paritaprevir, and ritonavir at around the same time every day. Do not take more or less of it or take it more often than prescribed by your doctor.
The extended-release tablets come in a package with 28 days of medication. Each daily dose pack contains 3 tablets that each contain a combination of dasabuvir, ombitasvir, paritaprevir, and ritonavir. Take dasabuvir, ombitasvir, paritaprevir, and ritonavir (3 tablets) every morning with food. Follow the instructions on each daily dose pack about how to remove the tablets.
Swallow the extended-release tablets whole; do not split, chew, or crush them.
Continue to take dasabuvir, ombitasvir, paritaprevir, and ritonavir even if you feel well. The length of your treatment (12 to 24 weeks) depends on your condition, how well you respond to the medication, and whether you experience severe side effects. Do not stop taking dasabuvir, ombitasvir, paritaprevir, and ritonavir without talking to your doctor.
Ask your pharmacist or doctor for a copy of the manufacturer's information for the patient.
This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.
Before taking dasabuvir, ombitasvir, paritaprevir, and ritonavir,
Unless your doctor tells you otherwise, continue your normal diet.
It is important not to miss or skip any doses. Do not take a double dose to make up for a missed one.
Dasabuvir, ombitasvir, paritaprevir, and ritonavir may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:
Some side effects can be serious. If you experience any of these symptoms or those listed in the IMPORTANT WARNING section, call your doctor immediately
Dasabuvir, ombitasvir, paritaprevir, and ritonavir may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.
If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online ( Web Site ) or by phone (1-800-332-1088).
Keep this medication in the carton it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (not in the bathroom).
It is important to keep all medication out of sight and reach of children as many containers (such as weekly pill minders and those for eye drops, creams, patches, and inhalers) are not child-resistant and young children can open them easily. To protect young children from poisoning, always lock safety caps and immediately place the medication in a safe location – one that is up and away and out of their sight and reach. Web Site
Unneeded medications should be disposed of in special ways to ensure that pets, children, and other people cannot consume them. However, you should not flush this medication down the toilet. Instead, the best way to dispose of your medication is through a medicine take-back program. Talk to your pharmacist or contact your local garbage/recycling department to learn about take-back programs in your community. See the FDA's Safe Disposal of Medicines website ( Web Site) for more information if you do not have access to a take-back program.
In case of overdose, call the poison control helpline at 1-800-222-1222. Information is also available online at Web Site. If the victim has collapsed, had a seizure, has trouble breathing, or can't be awakened, immediately call emergency services at 911.
Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription.
It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.
AHFS® Consumer Medication Information. © Copyright, The American Society of Health-System Pharmacists, Inc., 7272 Wisconsin Avenue, Bethesda, Maryland. All Rights Reserved. Duplication for commercial use must be authorized by ASHP.
Selected Revisions: January 15, 2018.