DRUG INTERACTIONS: See also How to Use section.Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.Lopinavir/ritonavir interacts with many medications. Before taking lopinavir/ritonavir, tell your doctor or pharmacist about all the medications and products you use, including: certain HIV medications (such as darunavir, fosamprenavir, tipranavir).Other medications can affect the removal of lopinavir/ritonavir from your body, which may affect how lopinavir/ritonavir works. Examples include boceprevir, rifampin, St. John's wort, among others.Lopinavir/ritonavir can speed up or slow down the removal of other medications from your body, which may affect how they work. Examples of affected drugs include certain alpha blockers (such as alfuzosin, tamsulosin), certain inhaled drugs to treat breathing problems (such as fluticasone, salmeterol), cisapride, drugs to treat erectile dysfunction-ED or pulmonary hypertension (such as sildenafil, tadalafil), ergot drugs (such as ergotamine, dihydroergotamine), pimozide, rivaroxaban, certain sedatives (such as midazolam, triazolam), certain statins (such as lovastatin, simvastatin), among others.Because lopinavir/ritonavir solution contains alcohol, severe nausea and vomiting may occur if you are also taking certain drugs that interact with alcohol (such as disulfiram, metronidazole, tinidazole). Consult your doctor or pharmacist for details.This medication may decrease the effectiveness of hormonal birth control such as pills, patch, or ring. This could cause pregnancy. Talk to your doctor about additional or alternative reliable forms of birth control, and always use an effective barrier method (latex or polyurethane condoms/dental dams) during all sexual activity to decrease the risk of spreading HIV to others. Tell your doctor if you have any new spotting or breakthrough bleeding, because these may be signs that your hormonal birth control is not working well.Tell your doctor or pharmacist if you are taking other products that cause drowsiness including other drugs that contain alcohol, antihistamines (such as cetirizine, diphenhydramine), drugs for sleep or anxiety (such as alprazolam, diazepam, zolpidem), muscle relaxants, and narcotic pain relievers (such as codeine).Check the labels on all your medicines (such as allergy or cough-and-cold products) because they may contain ingredients that cause drowsiness. Ask your pharmacist about using those products safely.
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Report Problems to the Food and Drug Administration
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