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Ombitasvir / paritaprevir / ritonavir and Alcohol / Food Interactions

There are 3 alcohol/food/lifestyle interactions with ombitasvir / paritaprevir / ritonavir which include:


ritonavir ↔ food

Moderate Food Interaction

Consumer information for this interaction is not currently available.

ADJUST DOSING INTERVAL: Administration with food may modestly affect the bioavailability of ritonavir from the various available formulations. When the oral solution was given under nonfasting conditions, peak ritonavir concentrations decreased 23% and the extent of absorption decreased 7% relative to fasting conditions. Dilution of the oral solution (within one hour of dosing) with 240 mL of chocolate milk or a nutritional supplement (Advera or Ensure) did not significantly affect the extent and rate of ritonavir absorption. When a single 100 mg dose of the tablet was administered with a high-fat meal (907 kcal; 52% fat, 15% protein, 33% carbohydrates), approximately 20% decreases in mean peak concentration (Cmax) and systemic exposure (AUC) were observed relative to administration after fasting. Similar decreases in Cmax and AUC were reported when the tablet was administered with a moderate-fat meal. In contrast, the extent of absorption of ritonavir from the soft gelatin capsule formulation was 13% higher when administered with a meal (615 KCal; 14.5% fat, 9% protein, and 76% carbohydrate) relative to fasting.

MANAGEMENT: Ritonavir should be taken with meals to enhance gastrointestinal tolerability.


  1. "Product Information. Norvir (ritonavir)." Abbott Pharmaceutical, Abbott Park, IL.

paritaprevir ↔ food

Moderate Food Interaction

Consumer information for this interaction is not currently available.

ADJUST DOSING INTERVAL: Food enhances the oral bioavailability of ombitasvir, paritaprevir, ritonavir, and dasabuvir. Relative to fasting conditions, administration of ombitasvir, paritaprevir, ritonavir, and dasabuvir with a moderate-fat meal (approximately 600 Kcal; 20% to 30% calories from fat) increased the mean systemic exposure (AUC) by 82%, 211%, 49%, and 30%, respectively. Relative to fasting conditions, administration of ombitasvir, paritaprevir, ritonavir, and dasabuvir with a high-fat meal (approximately 900 Kcal; with 60% calories from fat) increased the mean AUC by 76%, 180%, 44%, and 22%, respectively.

MANAGEMENT: Ombitasvir/paritaprevir/ritonavir plus dasabuvir should always be administered with a meal. The fat or calorie content does not matter.


  1. "Product Information. Viekira Pak (dasabuvir/ombitasvir/paritaprevir/ritonavir)." AbbVie US LLC, North Chicago, IL.

High Cholesterol (Hyperlipoproteinemia, Hypertriglyceridemia, Sitosterolemia)

Moderate Potential Hazard, High plausibility

PIs - hyperlipidemia

Hyperlipidemia has been observed in 10% of patients receiving ritonavir during clinical trials. Increases of 30% to 40% from baseline have been reported for total cholesterol and 200% to 300% or more for triglycerides. These effects have also been reported during postmarketing experience with other protease inhibitors (PIs) but may be the most dramatic with ritonavir. The clinical significance of these elevations is unclear. Severe hyperlipidemia is known to sometimes cause pancreatitis. In addition, some patients have reportedly developed symptomatic atherosclerosis and coronary artery disease after initiating PI treatment. Patients with preexisting hyperlipidemia may require closer monitoring during PI therapy, and adjustments made accordingly in their lipid-lowering regimen. PI therapy should be administered cautiously in patients with coronary artery disease or a history of ischemic heart disease.


  1. "Product Information. Agenerase (amprenavir)." Glaxo Wellcome, Research Triangle Pk, NC.
  2. "Product Information. Invirase (saquinavir)." Roche Laboratories, Nutley, NJ.
  3. "Product Information. Lexiva (fosamprenavir)." GlaxoSmithKline, Research Triangle Park, NC.
  4. "Product Information. Reyataz (atazanavir)." Bristol-Myers Squibb, Princeton, NJ.
  5. "Product Information. Crixivan (indinavir)." Merck & Co, Inc, West Point, PA.
  6. Noor MA, Lo JC, Mulligan K, Schwarz JM, Halvorsen RA, Schambelan M, Grunfeld C "Metabolic effects of indinavir in healthy HIV-seronegative men." Aids 15 (2001): f11-8
  7. "Product Information. Norvir (ritonavir)." Abbott Pharmaceutical, Abbott Park, IL.
  8. Flynn TE, Bricker LA "Myocardial infarction in HIV-infected men receiving protease inhibitors." Ann Intern Med 131 (1999): 548
  9. Segerer S, Bogner JR, Walli R, Loch O, Goebel FD "Hyperlipidemia under treatment with proteinase inhibitors." Infection 27 (1999): 77-81
  10. Echevarria KL, Hardin TC, Smith JA "Hyperlipidemia associated with protease inhibitor therapy." Ann Pharmacother 33 (1999): 859-63
  11. Sullivan AK, Feher MD, Nelson MR, Gazzard BG "Marked hypertriglyceridaemia associated with ritonavir therapy." AIDS 12 (1998): 1393-4
  12. "Product Information. Fortovase (saquinavir)" Roche Laboratories, Nutley, NJ.
  13. Costa A, Pulido F, Rubio R, Cepeda C, Torralba M, Costa JR "Lipid changes in HIV-infected patients who started rescue therapy with an amprenavir/ritonavir-based highly active antiretroviral therapy." AIDS 16 (2002): 1983-4
  14. Struble K, Piscitelli SC "Syndromes of abnormal fat redistribution and metabolic complications in HIV-infected patients." Am J Health Syst Pharm 56 (1999): 2343-8
  15. "Product Information. Kaletra (lopinavir-ritonavir)" Abbott Pharmaceutical, Abbott Park, IL.
  16. Tsiodras S, Mantzoros C, Hammer S, Samore M "Effects of protease inhibitors on hyperglycemia, hyperlipidemia, and lipodystrophy - A 5-year cohort study." Arch Intern Med 160 (2000): 2050-6
  17. Karmochkine M, Raguin G "Severe coronary artery disease in a young HIV-infected man with no cardiovascular risk factor who was treated with indinavir." AIDS 12 (1998): 2499
  18. "Product Information. Aptivus (tipranavir)." Boehringer-Ingelheim, Ridgefield, CT.
  19. "Product Information. Viracept (nelfinavir)." Agouron Pharma Inc, La Jolla, CA.
View all 19 references

ombitasvir / paritaprevir / ritonavir drug Interactions

There are 868 drug interactions with ombitasvir / paritaprevir / ritonavir

ombitasvir / paritaprevir / ritonavir disease Interactions

There are 5 disease interactions with ombitasvir / paritaprevir / ritonavir which include:

Drug Interaction Classification

The classifications below are a general guideline only. It is difficult to determine the relevance of a particular drug interaction to any individual given the large number of variables.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No information available.

Do not stop taking any medications without consulting your healthcare provider.

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