Symptoms of withdrawal commonly include nausea, vomiting, and loss of appetite. Other symptoms may include restlessness, increased sweating, and trouble sleeping. Less commonly, there may be a feeling of the world spinning, numbness, or muscle pains. Symptoms generally resolve after a short period of time.There is tentative evidence that discontinuation of antipsychotics can result in psychosis. It may also result in reoccurrence of the condition that is being treated. Rarely, tardive dyskinesia can occur when the medication is stopped. Pharmacology
Chlorpromazine is classified as a low-potency typical antipsychotic. Low-potency antipsychotics have more anticholinergic side effects, such as dry mouth, sedation, and constipation, and lower rates of extrapyramidal side effects, while high-potency antipsychotics (such as haloperidol) have the reverse profile. Pharmacokinetics
Pharmacodynamics
Chlorpromazine is a very effective antagonist of D2 dopamine receptors and similar receptors, such as D3 and D5. Unlike most other drugs of this genre, it also has a high affinity for D1 receptors. Blocking these receptors causes diminished neurotransmitter binding in the forebrain, resulting in many different effects. Dopamine, unable to bind with a receptor, causes a feedback loop that causes dopaminergic neurons to release more dopamine. Therefore, upon first taking the drug, patients will experience an increase in dopaminergic neural activity. Eventually, dopamine production of the neurons will drop substantially and dopamine will be removed from the synaptic cleft.
Consideration of Other Psychiatric Disorders
Criterion E: The disturbance is not merely an exacerbation of the symptoms of another disorder, such as major depressive disorder, panic disorder, persistent depressive disorder (Dysthymia), or a personality disorder—although it may co-occur with any of these disorders.Confirmation of the Disorder
Criterion F: Criterion A should be confirmed by prospective daily ratings during at least two symptomatic cycles. The diagnosis may be made provisionally prior to this confirmation. Criterion G: The symptoms are not attributable to the physiological effects of a substance (e.g., drug abuse, a medication, other treatments) or another medical condition (e.g., hyperthyroidism). Clinically significant distress is not defined explicitly by the DSM-IV, where it has been critiqued by multiple scholars as being too vague, and potentially detrimental for those who have symptoms of depression, anxiety, or other mood disorders because they do not meet the clinical significance requirement. ICD 11
Diagnostic criteria for PMDD are also provided by the 2016 World Health Organizations International Classification of Diseases (ICD-11-CM):

GA34.41 Premenstrual dysphoric disorder
Description
During a majority of menstrual cycles within the past year, a pattern of mood symptoms (depressed mood, irritability), somatic symptoms (lethargy, joint pain, overeating), or cognitive symptoms (concentration difficulties, forgetfulness) that begin several days before the onset of menses, start to improve within a few days after the onset of menses, and then become minimal or absent within approximately 1 week following the onset of menses. The temporal relationship of the symptoms and luteal and menstrual phases of the cycle may be confirmed by a prospective symptom diary.