A Study of Adverse Cutaneous Drug Reactions Due to Nsaids at a Rural Based Tertiary Care Centre , Gujarat

Results: A total of 288 patients enrolled in the study, among which 173 (60.07%) were males and 115 (39.93%) were females. Most common age group was 21-40 years. Most common presenting complaint was redness (which was generalized in some and localized in few) in 61 (26.75%) patients followed by itching in 58 (25.43%) patients. With most common diagnosis of cutaneous ADR were urticaria 97(33.6%), angioedema 45(15.6%), FDR (Fixed Drug Reaction) 17(5.9%), DRESS (Drug Reaction with Eosinophilia and Systemic Symptoms) 11(3.8%), SJS(Stevenson Johnson Syndrome) 9(3.1%), TEN (Toxic Epidermal Necrolysis) 1(0.34%) and others 37(12.8%).

not only one of the most commonly used drugs but also those which commonly cause Adverse Cutaneous Drug Reaction (ACDRs).NSAIDS can cause urticaria, angioedema, acneform eruption, SJS, TEN, vasculitis etc.It is very important and useful to have detailed knowledge regarding ACDRs due to NSAIDS.Cyclooxygenase (COX) inhibitors, commonly called Non steroidal Anti-Inflammatory Drugs (NSAIDs), such as ibuprofen, diclofenac, and naproxen, have anti-inflammatory and analgesic/ antipyretic properties across a wide range of dosing regimens.All NSAIDs are COX inhibitor that converts arachidonic acid to prostaglandins [1].Main ADRs associated with NSAIDs are in gastro¬intestinal (GI), cardiovascular (CV), and renal sites [2].Cutaneous manifestations are rare but serious.

Material and Methods
The study was carried out in the department of dermatology in a teaching institute at a rural based tertiary care centre of Gujarat from March-2010 to March 2017 after getting ethical approval from HREC of the institute.This was a cross sectional analytical study.The study included all the patients with symptoms and signs suggestive of adverse cutaneous drug reaction after intake of NSAIDS.Inclusion criteria: (1) Any age-group (2)Any gender (3) Any CADR due to NSAID drug (4) Gives written informed consent: Exclusion criteria (1) Any patient with more than one drug allergy (2) Patient refused to give written informed consent.All the data was recorded in a predesigned proforma with the consent of patients and analysis was done.An attention was paid to the drug history, temporal correlation with the drug, duration of the rash, appearance of signs and symptoms, morphology of the eruption, associated mucosal or systemic involvement and improvement of lesions on withdrawal of drug.In every case a detailed history was elicited and a thorough clinical examination was carried out.To establish the etiologic agent for a particular type of reaction, a diagnosis of ACDR was reached after exclusion of other aetiologies and similar disorders like reactions due to food, infections and environmental factors.If more than one drug was thought to be responsible, the most likely offending agent was noted and the impression was confirmed by subsidence of the rash on withdrawing the drug.Naranjos ADR causality was Based Tertiary Care Centre, Gujarat .Int J Pharmacovigil 3(1):1-4.

A Study of Adverse Cutaneous Drug Reactions Due to Nsaids at a Rural Based Tertiary Care Centre, Gujarat
Copyright: also used to evaluate CADRs [3].HartwigsPreventilibility and severity scale was also utilized [4].

Results
A total of 288 patients enrolled in the study, among which 173 (60.07%) were males and 115 (39.93%) were females.Most common age group was 21-40 years both in males and females (Table 2).Most common presenting complaint was redness in 61 (26.75%) patients followed by itching in 58 (25.43%) patients.Latency period after taking of the drug and development of lesions was 3-5 days in 119(41.31%) of patients and it was 5-7 days in 61(21.18%),It was 1-2 day in 37(12.84%)patients (Table 1).In our study the difference between latency period of NSAIDs according to WHO-UMC score and Naranjo was not compared.265(92.01%) developed CADR to the prescribed drugs while rest 23(7.98%)developed to self administered drugs.Route of administration was oral in 247(85.76%)patients and parenteral in 41(14.23%)patients.Past history of cutaneous drug reaction was seen in 69 (23.95%) patients out of which past history of cutaneous drug reaction with same drug was seen in 31(10.76%)patients and was not only due to NSAIDs.Family history of cutaneous drug reaction was seen in 15(5.2%)patients.Atopy or

Discussion
ADR is defined as "an appreciably harmful or unpleasant reaction, resulting from an intervention related to the use of a medicinal product, which predicts hazard from future administration and warrants prevention or specific treatment, or alteration of the dosage regimen, or withdrawal of the product" [5].Adverse drug reactions are classified into six types (with mnemonics): dose-related (Augmented), non-doserelated (Bizarre), dose-related and time-related (Chronic), time-related (Delayed), withdrawal (End of use), and failure of therapy (Failure) [6].Drug reactions can be classified into

A Study of Adverse Cutaneous Drug Reactions Due to Nsaids at a Rural Based Tertiary Care Centre, Gujarat
Copyright: immunologic and nonimmunelogicetiologies.The majority (75 to 80 percent) of adverse drug reactions are caused by predictable, nonimmunologic effects.1.The remaining 20 to 25 percent of adverse drug events are caused by unpredictable effects that may or may not be immune mediated [7].Non steroidal anti inflammatory drugs is a class of analgesic medication that reduces pain, fever and inflammation.Non Steroidal Anti-Inflammatory Drugs (NSAIDs) have a long history of its use as both prescription and over-the counter (OTC) analgesics/ antipyretics.All NSAIDs inhibit COX, an enzyme that converts arachidonic acid to prostaglandins.In the process, prostaglandin H2 is converted to five primary prosta¬glandins, including thromboxane A2 (which stimulates platelet aggregation and blood clot formation) in plate¬lets and prostacyclin (a vasodilator that inhibits platelet aggregation) in the endothelium [8].Conventional NSAIDs are nonselective, which bind and inhibit both the isoforms, but cyclooxygenase-1 (COX-1) is inhibited more avidly than cyclooxygenase-2 (COX-2) [9].Inhibition of COX-1 is responsible for the side effects and that of COX-2 for therapeutic effects.This has resulted in the introduction of the COX-2 selective drugs [10].As all the other drugs, NSAIDs also have its own adverse drug reactions affecting various systems of the body.The specific risk factors for NSAID ADR are older age, a history of gastro-duodenal ulcer, dyspepsia, concomitant use of medications such as corticosteroids and anticoagulants, high dosage use of multiple NSAIDs and the presence of other chronic co-morbidities [11].As recommended by the European Medicine Agency (EMA), NSAIDs should be prescribed at the lowest effective dose and for the shortest time necessary to control symptoms [12].ADRs associated with NSAIDs primarily manifest in gastro¬intestinal (GI), cardiovascular (CV), and renal sites [13].
The most frequent serious ADRs reported with the selected oral NSAIDs are cutaneous, followed by gastrointestinal, hepatic and renal events [14].In a study of 100orthopedicpatients of adverse drug reactions, Total 3 patients had cutaneous adverse drug reactions which included urticaria, itching and redness of the skin [15].A study of adverse drug reactions was done in pediatric age group including 754 cases over the period of 5 years..Among this 25 patients showed adverse drug reactions due to NSAIDs and 10 showed cutaneous adverse drug reaction [16].To evaluate the safety profile of oral Non Steroidal Anti-Inflammatory Drugs (NSAIDs) available in France a study was conducted from 2002 to 2006.A total of 42389 ADRs were reported and among them cutaneous drug reactions were observed in 6052 patients [14].
Patel et al has done a study of cutaneous reactions due to various drugs in 200 patients among which NSAIDs were the most common drug, 11 showed morbiliform rash, 20 showed urticaria and angioedema and 19 showed fixed drug reaction [17].
In our study out of 288 patients of ACDR FDR was seen in 17(5.9%) and Urticaria in 97(33.6%)while in Patel et al cases with FDR were 61(30.5%)and Urticaria were 37(18.5%)thappa et al presented ACDR in total 12% cases due to Nsaids [18].
After extensive literature search we could find the research which included all the adverse drug reactions due to NSAIDs but not many having specific information regarding cutaneous manifestations.

Conclusion
Nsaids are one of the most commonly used OTC (Over the Counter) drugs.The patient's education regarding using the lowest effective dose of OTC NSAIDs for the shortest required duration is vital in balancing efficacy and safety is to be provided by health care professionals.Pharmacovigilance improves recognition of ADRs by the medical professionals.It allows the treating physician to identify the ADR associated with drugs, in particular, with the ones considered relatively safe and with those commonly prescribed by the medical and non-health professionals.Pharmacovigilance is an important tool for the treating physician to develop safe medical practice.

Table 1 :
Incubation period of ACDRs

Table 2 :
Age and sex distribution of patients of ACDR due to NSAIDS

Table 3 :
Various patterns of drug reactions owing to various drugs