When an antidepressant dose is taken in too-high amounts, several negative side effects may start to show up. For instance, you might experience nausea or vomiting, lose your appetite, have strange dreams, muscle rigidity, palpitations, or difficulty sleeping. Some people also experience increased sensitivity to light and noise, confusion, or feelings of irritability or anxiety. In more serious cases, if the dose is very high, it could lead to serotonin syndrome, a potentially life-threatening condition that causes symptoms like irritability, confusion, fast heart rate, and muscle rigidity.
Moreover, if an antidepressant dose is too high, it can make you feel excessively healthy or hyperactive in some cases, as the medication can cause the brain to release too much of certain neurotransmitters, such as dopamine and norepinephrine. This can lead to a sensation of constantly being "on" and unable to relax or sit still.
It's important to note that these side effects can differ from person to person, depending on the specific medication, its dosage, and other health factors. If you're taking antidepressants and you start to notice any of these side effects, you should inform your doctor right away so that they can adjust your dose or switch you to a different medication that might be safer and more effective for you.
