Procaine benzylpenicillin

Procaine benzylpenicillin
Combination of
Benzylpenicillin	antibiotic
Procaine	anaesthetic
Legal status
Legal status	US: ℞-only ;
Identifiers
CAS Number	54-35-3
ATC code	J01CE09 (WHO) QJ51CE09

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Procaine benzylpenicillin (rINN), also known as procaine penicillin, is a form of penicillin which is a combination of benzylpenicillin and the local anaesthetic agent procaine. Following deep intramuscular injection, it is slowly absorbed into the circulation and hydrolysed to benzylpenicillin — thus it is used where prolonged low concentrations of benzylpenicillin are required.

This combination is aimed at reducing the pain and discomfort associated with a large intramuscular injection of penicillin. It is widely used in veterinary settings.

Uses

Specific indications for procaine penicillin include:^[1]

Syphilis
- In the United States, Bicillin C-R (a injectable suspension which 1.2 million units of benzathine penicillin & 1.2 million units of procaine penicillin per 4 mL) is not recommended for treating syphilis, since it contains only half the recommended dose of benzathine penicillin. Medication errors have been made due to the confusion between Bicillin L-A & Bicillin C-R.^[2] As a result, changes in product packaging have been made; specifically, the statement "Not for the Treatment of Syphilis" has been added in red text to both the Bicillin CR and Billin CR 900/300 syringe labels.^[3]
Respiratory tract infections where compliance with oral treatment is unlikely
Alongside Pen V and Erythromycin, Bicillin C-R is used to treatStrep Throat, given as one IM injection
Cellulitis, erysipelas
Procaine penicillin is also used as an adjunct in the treatment of anthrax.

Toxicology

Compendial status

British Pharmacopoeia ^[4]

References

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↑ Rossi S, editor, ed. (2006). Australian Medicines Handbook. Adelaide: Australian Medicines Handbook. ISBN 0-9757919-2-3.
↑ Centers for Disease Control and Prevention (CDC) (2005). "Inadvertent use of Bicillin C-R to treat syphilis infection--Los Angeles, California, 1999-2004". MMWR Morb. Mortal. Wkly. Rep. 54 (9): 217–9. PMID 15758893.
↑ United States Food & Drug Administration. "FDA Strengthens Labels of Two Specific Types of Antibiotics to Ensure Proper Use." Published December 1, 2004. Last accessed June 18, 2007.
↑ British Pharmacopoeia Commission Secretariat. "Index (BP 2009)" (PDF). Retrieved 26 March 2010.

[AMH2006-1] Rossi S, editor, ed. (2006). Australian Medicines Handbook. Adelaide: Australian Medicines Handbook. ISBN 0-9757919-2-3.

[2] Centers for Disease Control and Prevention (CDC) (2005). "Inadvertent use of Bicillin C-R to treat syphilis infection--Los Angeles, California, 1999-2004". MMWR Morb. Mortal. Wkly. Rep. 54 (9): 217–9. PMID 15758893.

[3] United States Food & Drug Administration. "FDA Strengthens Labels of Two Specific Types of Antibiotics to Ensure Proper Use." Published December 1, 2004. Last accessed June 18, 2007.

[ibp2009-4] British Pharmacopoeia Commission Secretariat. "Index (BP 2009)" (PDF). Retrieved 26 March 2010.

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Procaine benzylpenicillin

Contents

Uses

Toxicology

Compendial status

References

See also

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