The sources provided do not directly state the volume of losartan in kilograms. However, we can gather some information from the sources to provide a comprehensive answer.

Losartan is an antihypertensive medication that belongs to the class of angiotensin II receptor blockers (ARBs). It is primarily used to treat high blood pressure and certain types of heart failure.

The first source, DrugPatentWatch, provides information on the patent status and formulation of losartan. It does not specifically mention the volume of losartan in kilograms.

The second source, a study published on PubMed, discusses the pharmacokinetics of losartan and its active metabolite, E-3174. It provides information on the metabolism and elimination of losartan from the body. However, it does not mention the volume of losartan in kilograms.

The third source, a research article published on PMC, discusses the bioequivalence of generic losartan products. It compares the pharmacokinetics of different formulations of losartan. However, it does not provide information on the volume of losartan in kilograms.

In conclusion, the sources provided do not directly state the volume of losartan in kilograms. It is important to note that the volume of a medication is typically measured in milliliters (mL) or liters (L), rather than kilograms (kg). If you are looking for specific information regarding the volume of losartan, it would be best to consult the product label or package insert, or consult a healthcare professional.

Sources:
[1] DrugPatentWatch: https://www.drugpatentwatch.com/p/tradename/LOSARTAN
[2] PubMed: https://pubmed.ncbi.nlm.nih.gov/9388040/
[3] PMC: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3041115/