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 »  Abstract
 »  Introduction
 »  Case Report
 »  Discussion
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Year : 2010  |  Volume : 42  |  Issue : 5  |  Page : 324-325

Atorvastatin-induced pancreatitis

Department of Pharmacology, B. J. Medical College, Ahmedabad, India

Date of Submission05-May-2010
Date of Decision08-Jul-2010
Date of Acceptance13-Jul-2010
Date of Web Publication17-Sep-2010

Correspondence Address:
Chetna Desai
Department of Pharmacology, B. J. Medical College, Ahmedabad
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0253-7613.70400

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 » Abstract 

Drugs account for 1-2% of all cases of pancreatitis. A 58-year-old man was prescribed atorvastatin 10 mg for 6 months for hyperlipidemia. He developed acute abdominal pain and vomiting with epigastric tenderness. Serum lipase and CT scan of the patient suggested the presence of acute pancreatitis. The patient was hospitalized; atorvastatin was stopped and treated symptomatically. He recovered completely within 10 days of drug withdrawal. The causality of the adverse drug reaction according to Naranjo and WHO-UMC Scale was probable. The exact mechanism of pancreatitis due to atorvastatin is not known. It may be a class effect of HMG CoA reductase inhibitors as it had been reported with other statins too. The definite causal relationship is difficult to establish, as rechallenge with the suspected drug was not done due to ethical consideration.

Keywords: Adverse drug reaction, atorvastatin, pancreatitis

How to cite this article:
Prajapati S, Shah S, Desai C, Desai M, Dikshit R K. Atorvastatin-induced pancreatitis. Indian J Pharmacol 2010;42:324-5

How to cite this URL:
Prajapati S, Shah S, Desai C, Desai M, Dikshit R K. Atorvastatin-induced pancreatitis. Indian J Pharmacol [serial online] 2010 [cited 2022 Sep 29];42:324-5. Available from: https://www.ijp-online.com/text.asp?2010/42/5/324/70400

 » Introduction Top

Statins are commonly used for the treatment of hyperlipidemia. Atorvastatin is a frequently prescribed agent among them. They are generally considered safe, except for the risk of myopathy and liver damage. Recently, some cases of statin-induced pancreatitis have been reported. [1] In this study, we report a case of pancreatitis probably induced by atorvastatin.

 » Case Report Top

A 58-year-old man presented with severe vomiting and abdominal pain. There was no history of trauma or addiction to alcohol. There was no family history of pancreatitis. The patient was a known case of hyperlipidemia and was prescribed tablet atorvastatin 10 mg for last 6 months. He was also taking ferrous sulfate for anemia and ranitidine for dyspepsia for last 2 years. Physical examination revealed mild abdominal distention with severe epigastric tenderness. Laboratory investigations revealed serum lipase (137 IU/dL, normal range: 16-63 IU/dL) and serum amylase (501 IU/dL, normal range: 0-85 IU/dL] CT scan showed inflammation of the head of pancreas [Figure 1]. Ultrasonography (USG) of abdomen, magnetic resonance cholangiopancreatography (MRCP) and esophagoscopy were normal. The patient was diagnosed as a case of acute pancreatitis and hospitalized. Atorvastatin was stopped, and patient was treated symptomatically. Patient improved (serum lipase: 48 IU/dL on discharge) and was discharged from the hospital after 10 days.
Figure 1 :CT scan shows head of the inflamed pancreas

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Causality assessment of the adverse drug event (ADE) was carried out using WHO-UMC criteria and Naranjo's Scale. In this case, the patients improved on dechallenge (withdrawal of the drug) and there were no other confounding factors that could have caused this ADE. Hence, the ADE was probably caused by atorvastatin (WHO-UMC criteria: Probable; Naranjo's Score: 7, probable). The reaction was severe in nature (modified Hartwig and Siegel's Scale), [2] and it was not preventable (modified Schumock and Thornton criteria). [3]

 » Discussion Top

Drugs account for 1-2% of all cases of pancreatitis. [4] Numerous (more than 260) drugs, including statins have been implicated in the pathogenesis of acute pancreatitis. [5] Drug-induced pancreatitis is a clinical entity for which causal relationship is difficult to establish. Most information comes through individual case reports. In the present case, USG, CT scan, and MRCP ruled out the possibility of a surgical cause of pancreatitis. Patient was nonalcoholic, and there was no past history of pancreatic disease. Serum calcium and triglycerides were within normal range. Patient improved after dechallenge (withdrawal of the suspected drug). These factors raise a suspicion about causal relationship between atorvastatin and pancreatitis in this patient.

The exact mechanism of pancreatitis due to atorvastatin is not known. It may be a class effect as it is reported with other statins. The duration of statin treatment until the onset of pancreatitis is also variable, occurring within the first day of therapy in some cases and after several months in others. [6] Reports of outcome after rechallenge with the same or other statins are lacking. Therefore, a causal relation cannot be established with certainty, although in one previous report, the patient had tolerated pravastatin after developing atorvastatin-induced pancreatitis. [7] Statins are frequently prescribed for a variety of indications such as diabetes mellitus, ischemic heart diseases, cerebrovascular diseases, etc. Hence, the prescriber should, therefore, be aware of this ADR while evaluating patients suffering from pancreatitis. They also need to be aware that this might be a class effect of statins and hence prescribing another statin may also not be safe. Further research is needed to identify the exact mechanism of pancreatic injury induced by statins.

 » References Top

1.Singh S, Nautiyal A, Dolan J. Recurrent acute pancreatitis possibly induced by atorvastatin and rosuvastatin. Is statin induced pancreatitis a class effect? J Pancreas (Online) 2004;5:502-4.  Back to cited text no. 1      
2.Hartwig S, Seigel J, Schneider PJ. Preventability and severity assessment in reporting adverse drug reactions. Am J Hosp Pharm 1992;49:2229-32.  Back to cited text no. 2      
3.Schumock GT, Thornton JP. Focusing on the preventability of adverse drug reactions. Hosp Pharm 1992;27:538.  Back to cited text no. 3  [PUBMED]    
4.McArthur KE. drug-induced pancreatitis. Aliment Pharmacol Ther 1996;10:23-38.  Back to cited text no. 4  [PUBMED]    
5.Battillocchi B, Diana M, Dandolo R, Stefanini S, D'Amore L, Negro P. Drug-induced acute pancreatitis: A personal contribution. Chir Ital 2002;54:605-12.  Back to cited text no. 5  [PUBMED]    
6.Tysk C, Eryani AY, Shawabkeh AA. Acute pancreatitis induced by fluvastatin therapy. J Clin Gasteroenterol 2002;35:406-8.  Back to cited text no. 6      
7.Belaiche G, Ley G, Slama JL. Acute pancreatitis associated with atorvastatin therapy. Gastroenterol Clin Biol 2000;24:471-2.  Back to cited text no. 7      


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