Eligibility Criteria:
Inclusion Criteria:
* Participant must be 18 to 50 years of age inclusive, at the time of signing the informed consent.
* Participants who are healthy as determined by the investigator or medically qualified designee based on a medical evaluation including medical history, physical examination, laboratory tests, and cardiac monitoring (history and ECG).
* Body weight \>=50.0 kilograms (kg) (110 pounds \[lbs.\]) for males and \>=45 kg (99 lbs.) for females and body mass index within the range 18.5 to 31.0 kilogram per meter square (kg/m\^2, inclusive).
* A male participant is eligible to participate if they agree to use contraceptive methods.
* A female participant is eligible to participate if she is not pregnant (, not lactating or breastfeeding, and at least 1 of the following conditions applies: Is not a woman of childbearing potential (WOCBP) OR Is a WOCBP and using a non-hormonal contraceptive method that is highly effective
* Capable of giving signed informed consent
* Documentation that the participant is negative for the human leukocyte antigen (HLA) B\*5701 allele.
Exclusion Criteria:
* Current or chronic history of liver disease or known hepatic or biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones).
* Medical history of cardiac arrhythmias, prior myocardial infarction in the past 3 months, or cardiac disease or a family or personal history of long QT syndrome.
* A pre-existing condition interfering with normal gastrointestinal anatomy or motility (e.g., gastroesophageal reflux disease, gastric ulcers, gastritis), hepatic and/or renal function, that could interfere with the absorption, metabolism, and/or excretion of the study intervention.
* QT interval corrected for heart rate according to Fridericia's formula (QTcF) \>450 milliseconds (msec).
* A participant with known or suspected active coronavirus disease (COVID-19) infection OR contact with an individual with known COVID-19, within 14 days of study enrollment.
* Presence of hepatitis B surface antigen at screening or within 3 months prior to starting study intervention.
* Positive hepatitis C antibody test result at screening or within 3 months prior to starting study intervention AND positive on reflex to hepatitis C ribonucleic acid (RNA).
* Positive human immunodeficiency virus (HIV)-1 and -2 antigen/antibody immunoassay at screening.
* Alanine aminotransferase (ALT) \>1.5 × upper limit of normal (ULN). A single repeat of ALT is allowed within a single screening period to determine eligibility.
* Bilirubin \>1.5 × ULN (isolated bilirubin \>1.5 × ULN is acceptable if bilirubin is fractionated and direct bilirubin \<35%). A single repeat of any laboratory abnormality is allowed within a single screening period to determine eligibility.
* Any acute laboratory abnormality at screening which, in the opinion of the investigator, should preclude participation in the study of an investigational compound.
* Any Grade 2 to 4 laboratory abnormality at screening, with the exception of creatine phosphokinase (CPK) and lipid abnormalities (e.g., total cholesterol, triglycerides), and ALT (described above), will exclude a participant from the study unless the investigator can provide a compelling explanation for the laboratory result(s) and has the assent of the sponsor. A single repeat of any laboratory abnormality is allowed within a single screening period to determine eligibility.
* A positive test result for drugs of abuse (including marijuana), alcohol, or cotinine (indicating active current smoking) at screening or before the first dose of study intervention.
* Unable to refrain from the use of prescription or non-prescription drugs including vitamins, herbal and dietary supplements (including St. John's wort) within 7 days (or 14 days if the drug is a potential enzyme inducer) or 5 half-lives (whichever is longer) prior to the first dose of study intervention and for the duration of the study until completion of the follow-up visit, unless, in the opinion of the investigator and ViiV Healthcare (VH)/GlaxoSmithKline medical monitor, the medication will not interfere with the study procedures or compromise participant safety.
* Unwillingness to abstain from excessive consumption of any food or drink containing grapefruit and grapefruit juice, Seville oranges, blood oranges, or pomelos or their fruit juices within 7 days prior to the first dose of study intervention(s) until the end of the study.
* Participation in another concurrent clinical study or prior clinical study (with the exception of imaging trials) prior to Day 1 of Period 1 in the current study: 30 days, 5 half-lives, or twice the duration of the biological effect of the study intervention (whichever is longer).
* Where participation in the study would result in donation of blood or blood products in excess of 500 milliliter (mL) within 60 days.
* Estimated serum creatinine clearance (Chronic Kidney Disease Epidemiology Collaboration \[CKD-EPI\]) \<90 milliliter per minute (mL/min).
* History of regular alcohol consumption within 6 months of the study, defined as an average weekly intake of \>14 units for males or \>7 drinks for females.
* Unable to refrain from tobacco or nicotine-containing products within 1 month prior to screening.
* History of sensitivity, prior intolerance or hypersensitivity to any of the study interventions, or components thereof, or a history of drug or other allergy that, in the opinion of the investigator or medical monitor, contraindicates their participation.