Take Harvoni exactly as prescribed by your doctor. Follow all directions on your prescription label and read all medication guides or instruction sheets.
You may take Harvoni with or without food. Take the medicine at the same time each day.
Read and carefully follow any Instructions for Use provided with your medicine. Ask your doctor or pharmacist if you do not understand these instructions.
Do not chew the oral pellets. To take with food, you may mix the pellets with a non-acidic soft food (pudding, chocolate syrup, mashed potato, ice cream) that is at room temperature or below. Swallow the mixture without chewing, no more than 30 minutes after mixing. Do not save the mixture for later use.
Ledipasvir and sofosbuvir doses are based on weight (especially in children and teenagers). Your dose needs may change if you gain or lose weight.
You will need frequent blood tests to check your liver function.
If you've ever had hepatitis B, this virus may become active or get worse while you are using this medicine or in the months after you stop. You may need liver function tests for several months after your last dose.
You should not stop using Harvoni suddenly. Stopping suddenly could make your condition harder to treat with hepatitis C antiviral medicine.
Use all medications as directed and read all medication guides you receive. Do not change your dose or dosing schedule without your doctor's advice. Every person with chronic hepatitis C should remain under the care of a doctor.
Store this medicine in the original container at room temperature away from moisture and heat. Do not open the packet of oral pellets until you are ready to use the medicine.
 Detailed Harvoni dosage information
What happens if I miss a dose?
Take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time.
Get your prescription refilled before you run out of medicine completely.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
