Summary of medicine characteristics - CHLORACTIL, CHLORPROMAZINE TABLETS BP 25 MG
CHLORACTIL/Chlorpromazine HC1
2 QUALITATIVE AND QUANTITATIVE COMPOSITION
Each tablet contains 25 mg of Chlorpromazine HC1 BP.
Excipients with known effect: Each tablet also contains 74.80 mg of lactose.
For the full list of excipients, see section 6.1.
3 PHARMACEUTICAL FORM
Film-Coated Tablet
White, film-coated, biconvex, odourless tablets, engraved ‘CHLORACTIL 25’ on one side and plain on the other side.
4.1 Therapeutic indications
Chlorpromazine is a phenothiazine neuroleptic. It is indicated in the following conditions:
Schizophrenia and other psychoses (especially paranoid), mania and
hypomania.
In anxiety, psychomotor agitation, excitement, violent or dangerously impulsive behaviour. Is used as an adjunct in the short-term management of these conditions.
Intractable hiccup.
Nausea and vomiting of terminal illness (where other drugs have failed or are not available).
Childhood schizophrenia and autism.
4.2 Posology and method of administration
Dosages should be low to begin with and gradually increased under close supervision until the optimum dosage for the individual is reached.
Individuals vary considerably and the optimum dose may be affected by the formulation used.
Dosage of chlorpromazine in schizophrenia, other psychoses, anxiety and agitation etc.
Adult:
Initially 25 mg t.d.s. or 75 mg at bedtime increasing by daily amounts of 25 mg to an effective maintenance dose. This is usually in the range 75 to 300mg daily but some patients may require up to 1 g daily.
Children under 1 year:
Do not use unless need is life saving.
Children 1–5 years:
0.5 mg/kg body weight every 4–6 hours to a maximum recommended dose of 40mg daily.
Children 6–12 years:
1/3 – 1/2 adult dose to a maximum recommended dose of 75 mg dally.
Elderly or debilitated patients:
Start with 1/3 – 1/2 usual adult dose with a more gradual increase in dosage.
Hiccups
Adult:
25–50 mg t.d.s. or q.d.s.
Children under 1 year:
No information available.
Children 1–5 years:
No information available.
Children 6–12 years:
No information available.
Elderly or debilitated patients:
As for adults.
Nausea and vomiting of terminal illness:
Adults:
10–25 mg every 4–6 hours.
Children under 1 year:
Do not use, unless need is life saving.
Children 1–5 years:
0.5 mg/kg every 4–6 hours. Maximum daily dosage should not exceed 40 mg.
Children 6–12 years:
0.5 mg/kg every 4–6 hours. Maximum daily dosage should not exceed 75 mg.
Elderly or debilitated patients:
Initially 1/3 – 1/2 adult dose. The physician should then use his clinical judgment to obtain control.
Method of administration: Oral.
4.3 Contraindications
Hypersensitivity to chlorpromazine or to any of the excipients listed in section 6.1
Hypothyroidism
Bone marrow depression
Phaeochromocytoma
Myasthenia gravis
Risk of angle-closure glaucoma.
Risk of urinary retention related to urethroprostatic disorders.
History of agranulocytosis.
Dopaminergic antiparkinsonism agents (see Section 4.5).
Nursing mothers (see Section 4.6).
Citalopram, escitalopram.
4.4 Special warnings and precautions for use
Blood Dyscrasias: All patients must be advised that, if they experience fever, sore throat or any other infection, they should inform their physician immediately and undergo a complete blood count. Treatment will be discontinued if any marked changes (hyperleucocytosis, granulocytopenia) are observed in the latter.
As agranulocytosis has been reported, regular monitoring of the complete blood count is recommended. The occurrence of unexplained infections or fever may be evidence of blood dyscrasia (see Section 4.8) and requires immediate haematological investigation.
Neuroleptic malignant syndrome: treatment must be interrupted in the event of unexplained hyperpyrexia since this can be one of the signs of neuroleptic malignant syndrome (pallor, hyperthermia, disorders of autonomic function, altered, consciousness, muscle rigidity). Signs of autonomic instability, such as hyperhydrosis and irregular blood pressure, can precede the onset of hyperthermia and as such constitute premonitory signs of the syndrome. While this neuroleptic-related effect can be of idiosyncratic origin, certain risk factors such as dehydration and brain damage would seem to indicate a predisposition.
Chlorpromazine should be avoided in patients with hypothyroidism, phaeochromocytoma, myasthenia gravis and prostate hypertrophy. It should be avoided in patients known to be hypersensitive to phenothiazines or with a history of narrow angle glaucoma or agranulocytosis.
Acute withdrawal symptoms, including nausea, vomiting and insomnia, have very rarely have been reported following the abrupt cessation of high doses of neuroleptics. Relapse may also occur, and the emergence of extrapyramidal reactions has been reported. Therefore, gradual withdrawal is advisable.
In schizophrenia, the response to neuroleptic treatment may be delayed. If treatment is withdrawn, the recurrence of symptoms may not become apparent for some time.
Neuroleptic phenothiazines may potentiate QT interval prolongation which increases the risk of onset of serious ventricular arrhythmias of the torsade de pointes type, which is potentially fatal (sudden death). QT prolongation is exacerbated, in particular, in the presence of bradycardia, hypokalaemia, and congenital or acquired (i.e. drug induced) QT prolongation. If the clinical situation permits, medical and laboratory evaluations should be performed to rule out possible risk factors before initiating treatment with a neuroleptic agent and as deemed necessary during treatment (see Section 4.8).
Where clinically possible, the absence of any factors favouring the onset of ventricular arrhythmias should be ensured before administration:
Bradycardia less than 55 beats per minute;
Hypokalaemia;
Hypocalcaemia
Hypomagnesaemia
Starvation
Alcohol abuse
Concomitant therapy with other drugs to prolong the QT interval
Congenital long QT interval;
Ongoing treatment with any drug which could induce marked bradycardia (<55 beats per minute), hypokalaemia, intracardiac conduction depression or QT prolongation (see Section 4.5).
With the exception of emergencies, it is recommended that the initial work up of patients receiving a neuroleptic should include an ECG.
Except under exceptional circumstances, this drug must not be administered to patients with Parkinson’s disease.
The concomitant use of chlorpromazine with lithium, other QT prolongation agents, and dopaminergic antiparkinsonism agents is not recommended (see Section 4.5).
The onset of paralytic ileus, potentially indicated by abdominal bloating and pain, must be treated as an emergency (see section 4.8). Cases of venous thromboembolism (VTE) sometimes fatal, have been reported with antipsychotic drugs. Since patients treated with anti-psychotics often present with acquired risk factors for VTE, all possible risk factors for VTE should be identified before and during treatment with Chlorpromazine and preventive measures undertaken.
Stroke: In randomised clinical trials versus placebo performed in a population of elderly patients with dementia and treated with certain atypical antipsychotic drugs, a 3-fold increase of the risk of cerebrovascular events has been observed. The mechanism of such risk increase is not known. An increase in the risk with other antipsychotic drugs or other populations of patient cannot be excluded. Chlorpromazine should be used with caution in patients with stroke risk factors.
Elderly Patients with Dementia: Elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death. Analyses of seventeen placebo-controlled trials (modal duration of 10 weeks), largely in patients taking atypical antipsychotic drugs, revealed a risk of death in drug-treated patients of between 1.6 to 1.7 times the risk of death in placebo-treated patients. Over the course of a typical 10-week controlled trial, the rate of death in drug-treated patients was about 4.5% compared to a rate of about 2.6% in the placebo group. Although the cause of death in clinical trials with atypical antipsychotics were varied, most of the deaths appeared to be either cardiovascular (e.g., heart failure, sudden death) or infectious (e.g., pneumonia) in nature. Observational studies suggest that, similar to atypical antipsychotic drugs, treatment with conventional antipsychotic drugs may increase mortality. The extent to which the findings of increased mortality in observational studies may be attributed to the antipsychotic drug as opposed to some characteristic(s) of the patient is not clear.
As with all anti-psychotic drugs, Chlorpromazine should not be used alone where depression is predominant. However, it may be combined with antidepressant therapy to treat those conditions in which depression and psychosis coexist.
Chlorpromazine Tablets are not licensed for the treatment of dementia-related behavioural disturbances.
Because of the risk of photosensitisation, patients should be advised to avoid exposure to direct sunlight (see Section 4.8). In those frequently handling preparations of phenothiazines, the greatest care must be taken to avoid contact of the drug with the skin.
Hyperglycaemia or intolerance to glucose has been reported in patients treated with Chlorpromazine Tablets. Patients with an established diagnosis of diabetes mellitus or with risk factors for the development of diabetes who are started on Chlorpromazine Tablets should get appropriate glycaemic monitoring during treatment (see Section 4.8).
The following populations must be closely monitored after administration of chlorpromazine.
o epileptics, since chlorpromazine may lower the seizure threshold. Treatment must be discontinued if seizures occur.
o elderly patients presenting with heightened susceptibility to orthostatic hypotension, sedation and extrapyramidal effects; chronic constipation (risk of paralytic ileus), and potentially prostatic hypertrophy. It should be used with caution particularly during very hot or cold weather (risk of hyper-, hypothermia)
o patients presenting with certain forms of cardiovascular disease, since this class of drug has quinidine-like effects and can induce tachycardia and hypotension.
o patients with severe liver and/or renal failure because of the risk of accumulation.
Patients on long-term treatment should receive regular ophthalmological and haematological examinations.
Patients are strongly advised not to consume alcohol and alcohol-containing drugs throughout treatment (see Section 4.5).
Chlorpromazine tablets contain lactose. Patients with rare hereditary problems of galactose intolerance, the total lactase deficiency or glucosegalactose malabsorption should not take this medicine.
This medicine contains less than 1 mmol sodium (23 mg) per 25 mg tablet, that is to say essentially ‘sodium-free’.
Owing to the risk of hypotension, patients should be advised to remain supine for at least half an hour after injection. Tachycardia as well as local pain or nodule formation may occur after intramuscular administration. Blood pressure should be monitored when receiving parenteral chlorpromazine
Since there is a potential impact on cognitive function, children should undergo a yearly clinical examination to evaluate learning capacity. The dosage should be adjusted regularly as a function of the clinical status of the child.
4.5 Interaction with other medicinal products and other forms of interaction Adrenaline must not be used in patients overdosed with Chlorpromazine.
Anticholinergic drugs may reduce the antipsychotic effect of Chlorpromazine and the mild anticholinergic effect of Chlorpromazine may be enhanced by other anticholinergic drugs possibly leading to constipation, heat stroke etc.
The action of some drugs may be opposed by Chlorpromazine; these include amphetamine, levodopa, clonidine, guanethidine and adrenaline.
Increases or decreases in the plasma concentrations of a number of drugs e.g. propranolol Phenobarbital have been observed but were not of clinical significance.
Simultaneous administration of deferoxamine and prochlorperazine has been observed to induce a transient metabolic encephalopathy characterised by loss of consciousness for 48–72 hours. It is possible this may occur with Chlorpromazine since it shares many of the pharmacological properties of prochlorperazine.
There is an increased risk of agranulocytosis when neuroleptics are used concurrently with drugs with myelosuppressive potential, such as carbamazepine or certain antibiotics and cytotoxics.
Combinations contraindicated
Dopaminergics (quinagolide, cabergoline), not including dopaminergic antiparkinsonism agents, are contraindicated (see Section 4.3): reciprocal antagonism of the dopaminergic agent and neuroleptic. Citalopram and escitalopram are contraindicated.
Combinations not recommended
Dopaminergic antiparkinsonism agents (amantadine, bromocriptine, cabergoline, levodopa, lisuride, pergolide, piribedil, ropinirole) are not recommended: reciprocal antagonism of the antiparkinsonism agent and neuroleptic (see Section 4.4).
Neuroleptic-induced extrapyramidal syndrome should be treated with an anticholinergic rather than a dopaminergic antiparkinsonism agent (dopaminergic receptors blocked by neuroleptics).
Levodopa: reciprocal antagonism of levodopa and the neuroleptic. In Parkinson’s patients, it is recommended to use the minimal doses of each drug.
QT prolonging drugs: there is an increased risk of arrhythmias when neuroleptics are used with concomitant QT prolonging drugs (including certain antiarrhythmics, antidepressants and other antipsychotics including sultopride) and drugs causing electrolyte imbalance (see Section 4.4).
Alcohol: alcohol potentiates the sedative effect of neuroleptics. Changes in alertness can make it dangerous to drive or operate machinery. Alcoholic beverages and medication containing alcohol should be avoided (see Section 4.4).
Lithium (high doses of neuroleptics): concomitant use can cause confusional syndrome, hypertonia and hyperreflexivity, occasionally with a rapid increase in serum concentrations of lithium (see Section 4.4). There have been rare cases neurotoxicity Lithium can interfere with the absorption of neuroleptic agents.
Combinations requiring precautions
Antidiabetic agents: concomitant administration of high chlorpromazine doses (100 mg/day), and antidiabetic agents can lead to an increase in blood sugar levels m (decreased insulin release). Forewarn the patient and advise increased self-monitoring of blood and urine levels. If necessary, adjust the antidiabetic dosage during and after discontinuing neuroleptic treatment.
Topical gastrointestinal agents (magnesium, aluminium and calcium salts, oxides and hydroxides): decreased GI absorption of phenothiazine neuroleptics. Do not administer phenothiazine neuroleptics simultaneously with topical GI agents (administer more than 2 hours apart if possible).
CYP1A2 inhibitors
Administration of chlorpromazine with CYP1A2 inhibitors, in particular strong or moderate inhibitors may lead to an increase of chlorpromazine plasma concentrations. Therefore, patients may experience a chlorpromazine dose-dependent adverse drug reaction.
There is a possible pharmacokinetic interaction between inhibitors of CYP2D6, such as phenothiazines and CYP2D6 substrates.
Combinations to be taken into consideration
Antihypertensive agents: potentiation of the antihypertensive effect and risk of orthostatic hypotension (additive effects). Guanethidine has adverse clinically significant interactions documented.
Atropine and other atropine derivatives: imipramine antidepressants, histamine H1-receptor antagonists, anticholinergic, antiparkinsonism agents, atropinic antispasmodics, disopyramide: build up of atropine-associated adverse effects such as urinary retention, constipation, dry mouth and heat stroke etc.
Other CNS depressants: morphine derivatives (analgesics, antitussives and substitution treatments), barbiturates, benzodiazepines, anxiolytics other than benzodiazepines, hypnotics, sedative anti-depressants, histamine H1 receptor antagonists, central antihypertensive agents increased central depression. Changes in alertness can make it dangerous to drive or operate machinery.
4.6 Fertility, Pregnancy and lactation
Pregnancy
There is inadequate evidence of the safety of chlorpromazine in human pregnancy. There is evidence of harmful effects in animals, so like other drugs, it should be avoided in pregnancy unless the physician considers it essential. It may occasionally prolong labour and at such a time should be withheld until the cervix is dilated 3–4cm. Possible adverse effects on the foetus include lethargy or paradoxical hyperexcitability, tremor and low Apgar score.
A large amount of exposure to chlorpromazine during pregnancy did not reveal any teratogenic effect.
It is advised to keep an adequate maternal psychic balance during pregnancy in order to avoid decompensation. If a treatment is necessary to ensure this balance, the treatment should be started or continued at effective dose all through the pregnancy.
Neonates exposed to antipsychotics (including chlorpromazine) during the third trimester of pregnancy are at risk of adverse reactions including extrapyramidal and/or withdrawal symptoms that may vary in severity and duration following delivery. There have been reports of agitation, hypertonia, hypotonia, tremor, somnolence, respiratory distress, bradycardia, tachycardia, feeding disorder, meconium ileus, delayed meconium passage, abdominal bloating. Consequently, newborns should be monitored carefully in order to plan appropriate treatment.
Breast-feeding
Chlorpromazine may be excreted in milk, therefore breast-feeding is not recommended during treatment.
Fertility
A decrease in fertility was observed in female animals treated with chlorpromazine. In male animals, data are insufficient to assess fertility. In humans, because of the interaction with dopamine receptors, chlorpromazine may cause hyperprolactinaemia which can be associated with impaired fertility in women (see Section 4.8). In men, data on consequences of hyperprolactinaemia are insufficient with regard to fertility.
4.7 Effects on ability to drive and use machines
The attention of patients, particularly drivers and machine operators, should be drawn to the risk of drowsiness with this medication especially at the start of treatment.
4.8 Undesirable effects
The following undesired events, listed by body system, have been reported with the following frequencies: very common (>1/10), common (>1/100 to <1/10), uncommon (>1/1000 to <1/100), rare (>1/10,000 to <1/1,000), very rare (<1/10,000), not known (cannot be estimated from the available data).
| System Organ Class | Very common (>1/10) | Common (>1/100 to <1/10) | Not known (cannot be estimated from available data) |
| Blood and lymphatic system | Agranulocytosis Leucopenia |
| disorders | |||
| Immune system disorders | Systemic lupus erythematosus Antinuclear antibody positive1 Bronchospasm Anaphylactic reactions | ||
| Endocrine disorders | Hyp erprol actinaem ia Amenorrhoea | Galactorrhoea Gynaecomastia Erectile dysfunction Impotence Female sexual arousal disorder | |
| Metabolism and nutrition disorders | Weight increased | Glucose tolerance impaired (see section 4.4) | Hyperglycaemia (see section 4.4) Hypertriglyceridaemia Hyponatraemia Inappropriate antidiuretic hormone secretion |
| Psychiatric disorders | Anxiety | Lethargy Mood altered | |
| Nervous system disorders | Sedation 2 2 Somnolence Dyskinesia (Acute dystonias or dyskenias, usually transitory are more common in children and young adults and usually occur within the first 4 days of treatment or after dosage increases.) Tardive dyskinesia3 Extrapyramida l disorder Akathisia often after large initial dose | Hypertonia Convulsion | Torticollis Oculogyric crisis Trismus Akinesia Hyperkinesia Neuroleptic malignant Syndrome (hyperthermia, rigidity, autonomic dysfunction and altered consciousness) (see Section 4.4.) Parkinsonism (more common in adults and the elderly. It usually develops after weeks or months of treatment) to include tremor, rigidity or other features of Parkinsonism |
| Eye disorders | Accommodation Disorder4 Deposit eye 5 |
| Ocular changes7 | |||
| Cardiac disorders | ECG changes include El ectrocardi ogram QT Prolonged (as with other neuroleptics) (see Section 4.4), ST depression, UWave and T-Wave changes. | Cardiac arrythmias, including Ventricular arrhythmia and atrial arrythmias, a-v block, Ventricular fibrillation Ventricular tachycardia Torsade de pointes Cardiac arrest have been reported during neuroleptic phenothiazine therapy, possibly related to dosage. Pre-existing cardiac disease, old age, hypokalaemia and concurrent tricyclic antidepressants may predispose. Sudden death/sudden cardiac death (with possible causes of cardiac origin as well as cases of unexplained sudden death, in patients receiving neuroleptic phenothiazines) (see Section 4.4) | |
| Vascular disorders | Orthostatic Hypotension (Elderly or volume depleted subjects are particularly susceptible: it is more likely to occur after intramuscular administration. ) | Embolism venous Pulmonary embolism (sometimes fatal) Deep vein thrombosis (see Section 4.4) | |
| Respiratory, thoracic and mediastinal disorders | Respiratory depression Nasal stuffiness | ||
| Gastrointestinal disorders | Dry mouth Constipation | Colitis ischaemic Ileus paralytic (see |
| (see section 4.4) | Section 4.4) Intestinal perforation (sometimes fatal) Gastrointestinal necrosis (sometimes fatal) Necrotising colitis (sometimes fatal) Intestinal obstruction | ||
| Hepatobiliary disorders | Jaundice cholestatic6 Hepatocellular Liver injury6 Cholestatic liver 6 injury Mixed liver injury | ||
| Skin and subcutaneous tissue disorders | Dermatitis allergic Angioedema Contact skin sensitisation may occur rarely in those frequently handling preparation of chlorpromazine (see section 4.4) Skin rashes Urticaria Photosensitivity reaction | ||
| Renal and urinary disorders | Urinary retention1 2 3 | ||
| Pregnancy, puerperium and perinatal conditions | Drug withdrawal syndrome neonatal (see section 4.6) | ||
| Reproductive system and breast disorders | Priapism | ||
| General disorders and administration site conditions | Temperature regulation disorder Insomnia Agitation |
1 may be seen without evidence of clinical disease
2 particularly at the start of treatment
6 A premonitory sign may be a sudden onset of fever after one to three weeks of treatment followed by the development of jaundice. Chlorpromazine jaundice has the biochemical and other characteristics of obstructive (cholestatic) jaundice and is associated with obstructions of the canaliculi by bile thrombi; the frequent presence of an accompanying eosinophilia indicates the allergic nature of this phenomenon. Liver injury, sometimes fatal, has been reported rarely in patients treated with chlorpromazine. Treatment should be withheld on the development of jaundice (see section 4.4)
7 The development of a metallic greyish-mauve coloration of exposed skin has been noted in some individuals, mainly females, who have received chlorpromazine continuously for long periods (four to eight years).
Reporting of suspected adverse reactions
Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions via the Yellow Card Scheme at www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.
4.9 Overdose
4.9 OverdoseToxicity and treatment of overdosage: Symptoms of chlorpromazine overdosage include drowsiness or loss of consciousness, hypotension, tachycardia, E.C.G. changes, ventricular arrhythmias, hypothermia, Parkinsonism, convulsions and coma. Severe extra-pyramidal dyskinesias may occur.
Treatment should be symptomatic with continuous respiratory and cardiac monitoring (risk of prolonged QT interval) until the patient’s condition resolves.
If the patient is seen sufficiently soon (up to 6 hours) after ingestion of a toxic dose, gastric lavage may be attempted. Pharmacological induction of emesis is unlikely to be of any use. Activated charcoal should be given. There is no specific antidote. Treatment is supportive.
Generalised vasodilation may result in circulatory collapse; raising the patient’s legs may be sufficient. In severe cases, volume expansion by intravenous fluids may be needed; infusion fluids should be warmed before administration in order not to aggravate hypothermia.
Positive inotropic agents such as dopamine may be tried if fluid replacement is insufficient to correct the circulatory collapse. Peripheral vasoconstriction agents are not generally recommended; avoid the use of adrenaline.
Ventricular or supraventricular tachy-arrythmias usually respond to restoration of normal body temperature and correction of circulatory or metabolic disturbances. If persistent or life threatening, appropriate antiarrhythmic therapy may be considered. Avoid lidocaine and, as far as possible, long acting antiarrhythmic drugs.
Pronounced central nervous system depression requires airway maintenance or, in extreme circumstances, assisted respiration. Severe dystonic reactions usually respond to procyclidine (5–10 mg) or orphenedrine (20–40 mg) administered intramuscularly or intravenously. Convulsions should be treated with intravenous diazepam.
Neuroleptic malignant syndrome should be treated with cooling. Dantrolene sodium may be tried.
5 PHARMACOLOGICAL PROPERTIES
5.1 Pharmacodynamic properties
Pharmacotherapeutic Group: Antipsychotics, ATC Code: N05AA01. Chlorpromazine is a phenothiazine neuroleptic.
Chlorpromazine has depressant actions on the Central Nervous System, with alpha-adrenergic blocking and anticholinergic activities. It inhibits Dopamine and Prolactin release-inhibitory factor, thus stimulating the release of Prolactin. It increases the turnover of Dapamine in the brain.
It has anti-emetic, anti-puritic, serotonin-blocking and weak anti-histamine properties and slight ganglion blocking activity. It inhibits the heat regulating centre in the brain, and is analgesic and can relax skeletal muscle.
Due to its action on the autonomic system it produces vasodilation, hypotension and tachycardia.
Salivary and gastric secretions are reduced.
5.2 Pharmacokinetic properties
Chlorpromazine is rapidly absorbed and widely distributed in the body. It is metabolised in the liver and excreted in the urine and bile. Whilst plasma concentration of chlorpromazine itself rapidly declines excretion of chlorpromazine metabolites is very slow. The drug is highly bound to plasma protein. It readily diffuses across the placenta. Small quantities have been detected in milk from treated women. Children require smaller dosages per kg than adults.
5.3 Preclinical safety data
5.3 Preclinical safety dataNot applicable.
6 PHARMACEUTICAL PARTICULARS
6.1 List of excipients
Core:
Lactose
Maize Starch
Povidone
Sodium starch glycollate
Colloidal anhydrous silica
Magnesium stearate
Coating:
Opadry White 21S58740 containing;
Hydroxypropylmethyl cellulose 5/6 cps 2910
Ethylcellulose 10 cps
Diethylphthalate
Titanium dioxide
6.2 Incompatibilities
Chlorpromazine can increase the central nervous system depression produced by other CNS-depressant drugs including alcohol, hypnotics, sedatives or strong analgesics.
It antagonises the action of adrenaline and other sympathomimetic agents and reverses the blood pressure lowering effects of aenergic blocking agents such guanethidine and clonidine. It may impair the metabolism of tricyclic antidepressants, the anti-Parkinson effects of levodopa and the effects of anticonvulsants; it may possibly affect the control of diabetes, or the action of anticoagulants. Antacids can impair absorption. Tea and coffee may prevent absorption by causing insoluble precipitates.
Undesirable anticholinergic effects can be enhanced by anti-Parkinson or other anticholinergic drugs. It may enhace the cardiac-depressant effects of quinidine, the absorption of corticosteroids and digoxin, the effect of diazoxide and of neuromuscular blocking agents. Interactions with propanolol have been reported. The possibility of interaction with lithium should be bone in mind.
Further information: Chlorpromazine is a phenothiazide with an alphatic sidechain. Its pharmacological profile of activity includes pronounced sedative and hypotensive properties, with fairly marked anticholinergic and anti-emetic activity and a moderate tendency to cause extrapyramidal reactions.
6.3 Shelf life
36 months.
6.4 Special precautions for storage
Store below 25°C in a dry place, protect from light, keep containers closed.
6.5 Nature and contents of container
High density polyethylene with polythene lids and/or polypropylene containers with polypropylene or polythene lids and polyurethane/polythene wads.
PVC/aluminium foil blister packs.
Pack sizes: 28, 30, 50 56, 60, 84,100, 250, 500, 1000, 5000
250 micron PVC glass-clear/green rigid PVC (pharmaceutical grade). 20 micron hard-tempered aluminium foil coated on the dull side with 6–7 gsm heat seal lacquer and printed on the bright side.
Pack sizes: 28, 30, 50 56, 60, 84,100, 250, 500, 1000, 5000
6.6 Special precautions for disposal
6.6 Special precautions for disposalNo special instructions.
7 MARKETING AUTHORISATION HOLDER
Chelonia Healthcare Limited
11 Boumpoulinas,
Nicosia 1060, Cyprus
8 MARKETING AUTHORISATION NUMBER(S)
PL 33414/0130