AZD-8418 is an mGlu2 receptor positive allosteric modulators that attenuates nicotine-taking and nicotine-seeking behavior. Acute treatment with AZD8418 (0.37, 1.12, 3.73, 7.46, and 14.92 mg kg) and AZD8529 (1.75, 5.83, 17.5, and 58.3 mg kg) deceased nicotine self-administration and had no effect on food-maintained responding. Chronic treatment with AZD8418 attenuated nicotine self-administration, but tolerance to this effect developed quickly. The inhibition of nicotine self-administration by chronic AZD8529 administration persisted throughout the 14 days of treatment. Chronic treatment with either PAMs inhibited food self-administration. AZD8418 (acute) and AZD8529 (acute and subchronic) blocked cue-induced reinstatement of nicotine- and food-seeking behavior.
Omeprazole acid is a medication used in the treatment of gastroesophageal reflux disease, peptic ulcer disease, and Zollinger–Ellison syndrome. It is also used to prevent upper gastrointestinal bleeding in people who are at high risk. Omeprazole is a proton pump inhibitor and as such blocks the release of stomach acid.