An open-label, balanced, randomized, two-treatment, two-sequence, two-period, crossover, single dose oral relative bioavailability study of a novel PanCytoVir™ oral suspension (100 mg/mL) versus probenecid 500 mg tablets in normal healthy, adult, human subjects under fasting conditions.

Inclusion Criteria:

1. Normal healthy adult human subjects.
2. Subjects who are willing to participate and give informed consent
3. Subjects who are ≥ 18 years of age to ≤ 45 years of age and have a Body Mass Index between ≥18.5 to ≤ 30.0 kg/m2 extremes included, with weight of at least 50 kg.
4. Subjects with normal findings as determined by baseline history, physical examination and vital sign examination (blood pressure, pulse rate, respiration rate and body temperature).
5. Subjects with clinically acceptable findings as determined by haemogram, biochemistry, urine analysis, 12 lead ECG and chest X-ray.
6. Willingness to follow the protocol requirements especially abstaining from xanthine containing food or beverages (chocolates, tea, coffee or cola drinks) or grapefruit juice, any alcoholic products, the use of cigarettes and the use of tobacco products for 72.00 hours prior to dosing until after the last blood sample collection in each study period and adherence to food, fluid and posture restrictions.
7. No history of significant alcoholism.
8. Subject who have estimated glomerular filtration rate (eGFR) value is >60ml/min.
9. Found negative in Alcohol test.
10. Found negative in urine test for drug abuse [Benzodiazepines, Barbiturates, Morphine, Cocaine, Amphetamines and Tetrahydrocannabinol (THC)].
11. Non-smokers, ex-smokers and moderate smokers will be included. "Moderate smokers are defined as someone smoking 10 cigarettes or less per day, ex-smokers are someone who completely stopped smoking for at least 3 months."

Exclusion Criteria:

1. History of allergic responses or hypersensitivity to Probenecid or other related drugs, or any of its ingredients.
2. Requiring medication for any ailment having enzyme-modifying activity in the previous 21 days, prior to dosing day.
3. Subjects who have taken prescription medications or over-the-counter products (including vitamins and minerals) within 14 days prior to administration of study drug.
4. Any medical or surgical conditions, which might significantly interfere with the functioning of gastrointestinal tract, blood-forming organs etc.
5. History of cardiovascular, renal, hepatic, ophthalmic, pulmonary, neurological, metabolic, haematological, gastrointestinal, endocrine, immunological or psychiatric diseases.
6. Participation in a clinical drug study or bioequivalence study 90 days prior to period I dosing of the present study.
7. History of malignancy or other serious diseases.
8. Blood donation 90 days prior to period I dosing of the present study.
9. Subjects with positive HIV tests, HBsAg or Hepatitis-C tests.
10. History of problem in swallowing tablets/capsules/ Suspension.
11. Any contraindication to blood sampling.
12. Female subjects found positive serum (β) Beta- hCG (Human Chorionic Gonadotropin) test.
13. Lactating women (currently breast feeding).
14. Female subjects not confirming to using birth control measures, from the date of screening until the completion of the study. Abstinence, barrier methods (condom, diaphragm, etc.) are acceptable.
15. Use of hormonal contraceptives either oral or implants.
16. History of urinary retention, gastric retention and other severe decreased gastrointestinal motility conditions, uncontrolled narrow-angle glaucoma.

Plans are currently under development