In a study of 6,000 participants, 10% of those taking omeprazole for 3 years experienced memory loss. Another study found that 33% of patients taking the drug for more than 4.5 years reported cognitive problems. This may be due to reduced absorption of vitamin B12, which is essential for nervous system function.
Omeprazole is often used without a prescription, but it is important to consult a doctor before starting long-term treatment. PPI treatment should usually be limited to periods of 2 weeks to 3 months, depending on needs and dietary changes.
