Atropine Sulphate Injection BP 600mcg / ml


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Atropine Sulphate Injection BP 600mcg / ml


1. Name Of The Medicinal Product

Atropine Sulphate Injection BP 600mcg/ml.

2. Qualitative And Quantitative Composition

Atropine Sulphate BP 0.06% w/v.

3. Pharmaceutical Form

Sterile solution for injection.

4. Clinical Particulars 4.1 Therapeutic Indications

1. Drying secretions prior to anaesthesia.

2. Reversal of excessive bradycardia.

3. Indicated with neostigmine for reversal of neuromuscular block.

4.2 Posology And Method Of Administration



Management of bradycardia of acute myocardial infarction: Initial dose 300 – 600mcg intravenously, the dose may be increased by incremental doses of 100mcg up to 1mg if necessary.

Caution is required as atropine may aggravate ischaemia or infarction.

Treatment of bradycardia or asystole due to overdosage with parasympathetic agents:

1-2mg subcutaneously, intramuscularly or intravenously.

Drying secretions

300 – 600mcg subcutaneously or intramuscularly 30 – 60 minutes prior to induction of anaesthesia. Alternatively, 300 – 600mcg may be given intravenously immediately prior to induction of anaesthesia.

Reversal of competitive neuromuscular block

0.6 – 1.2mg by slow intravenous injection for control of muscarinic side effects of neostigmine in reversal of competitive neuromuscular block. Atropine should not be given routinely with neostigmine as it may mask signs of overdose.

Children aged 1 year and over

Caution should be exercised in children and reduced doses are necessary.

Drying secretions: 20mcg/kg intramuscularly 30 – 60 minutes prior to induction of anaesthesia. This dose should be reduced on hot days or in fever.

Other indications are not recommended for children.


Caution should be exercised in the elderly and reduced doses may be required.

Routes of administration: Intravenous, intramuscular or subcutaneous injection.

4.3 Contraindications

Known hypersensitivity to atropine, prostatic enlargement, paralytic ileus, pyloric stenosis, closed angle glaucoma or patients with narrow angle between iris and cornea. Atropine should not be given to patients, particularly children, when ambient temperatures are high due to the risk of provoked hyperpyrexia.

4.4 Special Warnings And Precautions For Use

Atropine should be used with caution in children and the elderly, patients with ulcerative colitis as ileus and megacolon may result and those with diarrhoea. Caution is required in patients having a fever, conditions characterised by tachycardia such as thyrotoxicosis, cardiac insufficiency or failure and in cardiac surgery or acute myocardial infarction. Atropine should be given with care to patients with hypertension. Extreme caution is necessary in patients with myasthenia gravis or autonomic neuropathy.

Caution is required when atropine is administered systemically to patients with chronic obstructive pulmonary disease, as a reduction in bronchial secretions may lead to the formation of bronchial plugs.

Antimuscarinics may delay gastric emptying, decrease gastric motility and relax the oesophageal sphincter. They should be used with caution in patients whose conditions may be aggravated by these effects e.g. reflux oesophagitis.

4.5 Interaction With Other Medicinal Products And Other Forms Of Interaction

Effects of atropine may be enhanced by concomitant administration of drugs having antimuscarnic properties. The reduction in gastric motility caused by atropine may affect absorption of other drugs.

4.6 Pregnancy And Lactation

Safety in human pregnancy has not been established although atropine does cross the placenta. Atropine may have antimuscarinic effects in infants. Therefore it is not advisable to administer atropine during pregnancy or breast feeding unless considered essential.

4.7 Effects On Ability To Drive And Use Machines

None as used on sedentary patients.

4.8 Undesirable Effects

Common side effects include dryness of the mouth with difficulty in swallowing and talking, thirst, mydriasis with cycloplegia and photophobia, flushing and dryness of skin, transient bradycardia followed by tachycardia, palpitations and arrhythmias, urinary retention, constipation.

Other reported side effects include anaphylaxis, urticaria and rash occasionally progressing to exfoliation.

Occasionally vomiting and dizziness. Retrosternal pain may occur due to gastric reflux. Rare occurrences include confusional states and fever.

Atropine may cause raised intra-ocular pressure and mental confusion especially in the elderly.

4.9 Overdose

Symptoms: Flushing and dryness of the skin (rash may appear on the face and upper trunk), tachycardia, rapid respiration, hyperpyrexia, CNS stimulation (restlessness, confusion, excitement, paranoid and psychotic reactions, hallucinations and delirium and occasionally seizures and convulsions). Severe overdose may be indicated by CNS depression, coma, circulatory and respiratory failure and death.

Treatment: Supportive therapy as necessary. Neostigmine or carbachol antagonise peripheral adverse effects. In children the body surface should be kept moist.

5. Pharmacological Properties 5.1 Pharmacodynamic Properties

Atropine is an antimuscarinic alkaloid with both central and peripheral actions. It first stimulates and then depresses the central nervous system and has antispasmodic actions on smooth muscle and reduces secretions, especially salivary and bronchial secretions.

5.2 Pharmacokinetic Properties

Rapidly cleared from blood and distributed throughout the body.

Completely metabolised in the liver and excreted in the urine as unchanged drug and metabolites.

Atropine crosses the placenta and traces are found in breast milk. Atropine crosses the blood brain barrier.

5.3 Preclinical Safety Data

None stated.

6. Pharmaceutical Particulars 6.1 List Of Excipients

Sulphuric Acid BP

Water for Injections HSE

6.2 Incompatibilities

Atropine is incompatible with alkaloids, tannic acid and mercury salts.

6.3 Shelf Life

36 months.

6.4 Special Precautions For Storage

Store below 25°C.

6.5 Nature And Contents Of Container

1ml neutral glass ampoules in packs of 5, 10 or 100.

6.6 Special Precautions For Disposal And Other Handling

None stated.

7. Marketing Authorisation Holder

Antigen International Limited


Co. Tipperary


8. Marketing Authorisation Number(S)

PL 02848/0211

9. Date Of First Authorisation/Renewal Of The Authorisation

3 April 2000

10. Date Of Revision Of The Text

February 2000

Atropine Sulphate Injection BP 600mcg ml

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