Before taking ribavirin,
tell your doctor and pharmacist if you are allergic to ribavirin, any other medications, or any of the ingredients in ribavirin tablets, capsules, or oral solution. Ask your pharmacist or check the Medication Guide for a list of the ingredients.
tell your doctor if you are taking didanosine (Videx). Your doctor will probably tell you not to take ribavirin if you are taking this medication.
tell your doctor and pharmacist what other prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take. Be sure to mention any of the following: azathioprine (Azasan, Imuran); medications for anxiety, depression, or other mental illness; nucleoside reverse transcriptase inhibitors (NRTIs) for human immunodeficiency virus (HIV) or acquired immunodeficiency syndrome (AIDS) such as abacavir (Ziagen, in Atripla, in Trizivir), emtricitabine (Emtriva, in Atripla, in Truvada), lamivudine (Epivir, in Combivir, in Epzicom), stavudine (Zerit), tenofovir (Viread, in Atripla, in Truvada), and zidovudine (Retrovir, in Combivir, in Trizivir); and medications that suppress the immune system such as cancer chemotherapy, cyclosporine (Neoral, Sandimmune), sirolimus (Rapamune), and tacrolimus (Prograf). Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
tell your doctor if you have kidney disease, liver failure, or autoimmune hepatitis (swelling of the liver that occurs when the immune system attacks the liver). Your doctor may tell you not to take ribavirin.
tell your doctor if you drink or have ever drunk large amounts of alcohol, if you use or have ever used street drugs, if you have ever thought about killing yourself or planned or tried to do so, and if you have ever had a liver transplant or other organ transplant. Also tell your doctor if you have or have ever had a mental illness such as depression, anxiety, or psychosis (loss of contact with reality); cancer; HIV or AIDS; diabetes; sarcoidosis (a condition in which abnormal tissue grows in parts of the body such as the lungs); Gilbert's syndrome (a mild liver condition that may cause yellowing of the skin or eyes); gout (a type of arthritis caused by crystals deposited in the joints); any type of liver disease other than hepatitis C;or thyroid, pancreas, eye, or lung disease.
tell your doctor if you are breast-feeding.
you should know that ribavirin may make you drowsy, dizzy, or confused. Do not drive a car or operate machinery until you know how this medication affects you.
do not drink alcoholic beverages while you are taking ribavirin. Alcohol can make your liver disease worse.
you should know that your mouth may be very dry when you take this medication, which can lead to problems with your teeth and gums. Be sure to brush your teeth twice a day and have regular dental exams. If vomiting occurs, rinse your mouth out thoroughly.