Omeprazole oral solution is a medication used to treat gastroesophageal reflux disease (GERD) and other conditions caused by excess stomach acid. According to the sources provided, there is no information available on what other liquids can be mixed with omeprazole oral solution.

The drug patent watch website [1] provides information about the patent status and manufacturer of omeprazole oral solution but does not mention anything about mixing it with other liquids.

The US Pharmacist article [2] explains that omeprazole oral solution is available in two strengths, 1 mg/mL and 2 mg/mL, and can be administered directly into the mouth or mixed with water, apple juice, or applesauce. However, the article does not mention any other liquids that can be mixed with omeprazole oral solution.

A study published in the National Center for Biotechnology Information [3] explains that omeprazole oral solution can be mixed with apple juice, orange juice, or yogurt for pediatric patients who have difficulty swallowing capsules. However, the study does not provide any information about the compatibility of omeprazole oral solution with other liquids.

In conclusion, the sources provided do not provide a comprehensive list of liquids that can be mixed with omeprazole oral solution. However, it is known that it can be mixed with water, apple juice, applesauce, orange juice, or yogurt. Patients should consult with their healthcare provider or pharmacist before mixing omeprazole oral solution with any other liquids.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/OMEPRAZOLE
[2] https://www.uspharmacist.com/article/omeprazole-1-mg-ml-or-2-mg-ml-oral-suspension
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2697083/