A Study to Evaluate the Effect of Cyclosporine, a P-Glycoprotein, Breast Cancer Resistance Protein, and Organic-Anion-Transporting Polypeptide Inhibitor, on Pimodivir in Healthy Adults

Inclusion Criteria: * Willing and able to adhere to the prohibitions and restrictions specified in this protocol * A woman of childbearing potential must have a negative highly sensitive serum (beta-human chorionic gonadotropin \[beta-hCG\]) at screening and on Day -1 of each treatment period * A woman must agree not to donate eggs (ova, oocytes) for the purposes of assisted reproduction during the study and for a period of at least 30 days after the last study drug intake * A male participant must wear a condom when engaging in any activity that allows for passage of ejaculate to another person (male participants should also be advised of the benefit for a female partner to use a highly effective method of contraception as condom may break or leak) * A male participant must agree not to donate sperm for the purpose of reproduction during the study and for a minimum of 90 days after last study drug intake Exclusion Criteria: * History of or current clinically significant medical illness including (but not limited to) cardiac arrhythmias or other cardiac disease, hematologic disease, coagulation disorders (including any abnormal bleeding or blood dyscrasias), lipid abnormalities, significant pulmonary disease, including bronchospastic respiratory disease, diabetes mellitus, hepatic or renal insufficiency (creatinine clearance below 90 milliliter per minute at screening), gastrointestinal disease (such as significant diarrhea, gastric stasis, or constipation that in the investigator's opinion could influence drug absorption or bioavailability), thyroid disease, neurologic or psychiatric disease, infection, or any other illness that the investigator considers should exclude the participant or that could interfere with the interpretation of the study results * History of clinically significant skin disease such as, but not limited to, dermatitis, eczema, drug rash, psoriasis, food allergy, or urticaria * Known allergies, hypersensitivity, or intolerance to pimodivir and/or cyclosporine or their excipients * History of clinically significant drug allergy such as, but not limited to, sulfonamides and penicillins, or drug allergy diagnosed in previous studies with experimental drugs