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Paracetamol
Generic Name:
Paracetamol, Caffeine and Codeine Phosphate Drug description: Paracetamol 500 mg per tablet Caffeine 30 mg per tablet Codeine
Phosphate 8 mg per tablet Film-coated tablet. Presentation: White, capsule-shaped tablet with dimensions of 17.55 mm x 7.5 mm
and debossed on one face to read PCC. Indications:
For the treatment of mild to moderate pain. Suitable for migraine,
headache,
rheumatic pain, period pain, toothache, neuralgia, sore throats and
feverishness and the symptomatic relief of colds and influenza. Adult Dosage: For oral administration only.
Adults, the Elderly and Children over 12 years of age:
2 tablets taken with water every 4-6 hours
No more than 8 tablets in 24 hours
Do not give to children under 12 years of age.
Do not take for more than 3 days without consulting a doctor. Child Dosage:
Children over 12 years of age: 2 tablets taken with water every 4-6
hours No more than 8 tablets in 24 hours Do not give to children under
12 years of age. Do not take for more than 3 days without consulting a
doctor
Elderly Dosage:
See Adult Dosage
Contra Indications:
Hypersensitivity to paracetamol, caffeine, codeine or any of the other
constituents. Conditions where morphine and opioids are contraindicated,
eg acute asthma, respiratory depression, acute alcoholism, head
injuries, raised intra-cranial pressure and following biliary tract
surgery.
Special Precautions:
Care is advised in the administration of paracetamol to patients with
severe renal or severe hepatic impairment. The hazard of overdose is
greater in those with non-cirrhotic alcoholic liver disease. Care should be taken in administering the product to any patient
whose condition may be exacerbated by opioids, particularly the elderly,
in whom there is increased sensitivity to the central and
gastro-intestinal effects, those on concurrent treatment with other CNS
depressant drugs, those with prostatic hypertrophy and those with
inflammatory or obstructive bowel disorders.
Patients should be advised not to exceed the recommended dose.
Patients should be advised not to take other paracetamol-containing
products concurrently.
If symptoms persist, patients should consult a doctor.
Keep out of the reach and sight of children.
Interactions:
The speed of absorption of paracetamol may be increased by
metoclopramide or domperidone and absorption reduced by colestyramine.
The anticoagulant effect of warfarin and other coumarins may be enhanced
by prolonged regular use of paracetamol with increased risk of bleeding.
Occasional doses have no significant effect.
The use of drugs which induce hepatic microsomal enzymes, such as
anticonvulsants and oral contraceptive steroids, may increase the extent
of metabolism of paracetamol, resulting in reduced plasma concentrations
of the drug and a faster elimination rate.
Drugs which induce hepatic microsomal enzymes, such as alcohol and
barbiturates, may increase the hepatotoxicity of paracetamol,
particularly after overdose.
CNS depression or excitation may occur if codeine is given to patients
receiving monoamine oxidase inhibitors, or within two weeks of stopping
treatment with them. The effects of CNS depressants (including alcohol)
may be potentiated by codeine.
Concurrent use of codeine with antidiarrhoeal and antiperistaltic agents
may increase the risk of severe constipation. Concomitant use of
antimuscarinics or medications with antimuscarinic action may result in
an increased risk of severe constipation, which may lead to paralytic
ileus and/or urinary retention.
Quinidine can inhibit the analgesic effect of codeine.
Codeine may delay the absorption of mexiletine and thus reduce the
antiarrhythmic effect of the latter. Codeine may antagonise the
gastrointestinal effects of metoclopramide and domperidone. Cimetidine
inhibits the metabolism of opioid analgesics resulting in increased
plasma concentrations.
Naltrexone blocks the therapeutic effect of opioids.
Adverse Reactions:
Adverse effects of paracetamol are rare, but hypersensitivity including
skin rash may occur. There have been a few reports of blood dyscrasias
including thrombocytopenia and agranulocytosis, but these were not
necessarily causally related to paracetamol.
Codeine can produce constipation and drowsiness. Occasional effects are
nausea, vomiting, sweating, facial flushing, dry mouth, blurred or
double vision, dizziness, postural hypotension, headache, vertigo,
palpitations, allergic reactions (itch, skin rash, facial oedema), and
difficulties in micturition (dysuria, increased frequency, decrease in
amount). Side-effects which occur rarely include hallucinations,
nightmares, restlessness and stomach cramps. The frequency and severity
are determined by dosage, duration of treatment and individual
sensitivity and are unlikely at this dosage. Tolerance and dependency
can occur, especially with prolonged high doses of codeine.
High doses of caffeine may produce headache, tremor, nervousness and
irritability.