1. The main purpose of this study is to assess the safety and tolerability of AZD5213 after multiple oral doses.
2. Another purpose of this study is to evaluate the pharmacokinetics (also called PK - how the study drug enters and leaves your body and how your body acts on the study drug) of AZD5213 in your blood and urine.

Inclusion Criteria:

• Male and non-fertile female healthy volunteers aged 18-50 years and 65-80 years inclusive at day of enrollment with suitable veins for cannulation or repeated venipuncture.
• Male healthy volunteers should be willing to use barrier contraception during sexual intercourse, ie condoms, even if partner is using contraceptive method, from the first day of dosing until 3 months after the last dosing with AZD5213.
• Body weight of ≥50 to ≤100 Kg and Body Mass Index (BMI) ≥18 to ≤30 kg/m2.

Exclusion Criteria:

• History and presence of any clinically significant disease or disorder such as cardiovascular, pulmonary, renal, hepatic, neurological, gastrointestinal and psychiatric/mental disorders.
• History or presence of gastrointestinal (including irritable bowel disease), hepatic or renal disease or any other condition known to interfere with absorption, distribution, metabolism, or excretion of drugs. Surgery on gastrointestinal tract.
• History of previous or ongoing psychiatric disorders.