| Undesirable effects may be minimised by using the lowest effective dose for the shortest duration necessary to control symptoms (see section 4.2, and GI and cardiovascular risks below). Patients treated with NSAIDs long-term should undergo regular medical supervision to monitor for adverse events.The use of Surgam with concomitant NSAIDs including cyclooxygenase-2 selective inhibitors should be avoided (see section 4.5).Tiaprofenic acid should be used with caution in:- patients with chronic renal insufficiency (particularly careful monitoring of renal function is required)- patients with arterial hypertension and/or heart failure- elderly subjects as they have an increased frequency of adverse reactions to NSAIDs, particularly gastrointestinal bleeding and perforation, which may be fatal (see section 4.2)- patients with a history of hepatic insufficiency Respiratory disorders: Caution is required if administered to patients suffering from, or with a previous history of, bronchial asthma since NSAIDs have been reported to precipitate bronchospasm in such patients.Tiaprofenic acid may cause sodium and water retention with oedema. At the start of therapy, urine volume and renal function should be carefully monitored in patients with a history of hypertension, cardiac insufficiency, liver cirrhosis, or nephrotic syndrome, and in patients on diuretics.Urinary symptoms and cystitis have been reported with tiaprofenic acid and other NSAIDs. Tiaprofenic acid appears to have a greater propensity than other NSAIDs to generate reports of cystitis.Tiaprofenic acid can cause cystitis which may become severe if the treatment is continued after the onset of urinary symptoms. Non-recognition has led to extensive investigations and even surgical intervention, in some patients. If urinary symptoms such as frequency, urgency, dysuria, nocturia or haematuria occur, tiaprofenic acid should be stopped immediately and urinalysis and urine culture performed and complete recovery is the rule. Before starting treatment with tiaprofenic acid, the patient should be asked to inform his/her physician of any urinary symptom, even if the physician is familiar with these symptoms from the patient's medical history (see Adverse Reactions).Patients should be warned about the onset of urinary symptoms which may suggest cystitis and are advised to stop taking the drug and seek medical advice if these occur. Gastrointestinal bleeding, ulceration and perforation: GI bleeding, ulceration or perforation, which can be fatal, has been reported with all NSAIDs at anytime during treatment, with or without warning symptoms or a previous history of serious GI events.The risk of GI bleeding, ulceration or perforation is higher with increasing NSAID doses, in patients with a history of ulcer, particularly if complicated with haemorrhage or perforation (see section 4.3), and in the elderly. These patients should commence treatment on the lowest dose available. Combination therapy with protective agents (e.g. misoprostol or proton pump inhibitors) should be considered for these patients, and also for patients requiring concomitant low dose aspirin, or other drugs likely to increase gastrointestinal risk (see below and section 4.5).Patients with a history of GI toxicity, particularly when elderly, should report any unusual abdominal symptoms (especially GI bleeding) particularly in the initial stages of treatment.Caution should be advised in patients receiving concomitant medications which could increase the risk of ulceration or bleeding, such as oral corticosteroids, anticoagulants such as warfarin, selective serotonin-reuptake inhibitors or anti-platelet agents such as aspirin (see section 4.5).When GI bleeding or ulceration occurs in patients receiving Surgam, the treatment should be withdrawn.NSAIDs should be given with care to patients with a history of gastrointestinal disease (ulcerative colitis, Crohn's disease) as their condition may be exacerbated (see section 4.8).Dermatological: Serious skin reactions, some of them fatal, including exfoliative dermatitis, Stevens-Johnson syndrome, and toxic epidermal necrolysis, have been reported very rarely in association with the use of NSAIDSs. Patients appear to be at highest risk of these reactions early in the course of therapy, the onset of the reaction occurring in the majority of cases within the first month of treatment. Surgam should be discontinued at the first appearance of skin rash, mucosal lesions, or any other sign of hypersensitivity.Impaired female fertility: The use of Surgam may impair female fertility and is not recommended in women attempting to conceive. In women who have difficulties conceiving or who are undergoing investigation of infertility, withdrawal of Surgam should be considered.There is a risk of cross-sensitivity among aspirin and NSAIDs, including the group to which tiaprofenic acid belongs. These pseudo-allergic reactions may include rash, urticaria and angioedema or more potentially severe manifestations (e.g. laryngeal oedema, bronchoconstriction and shock). The risk of pseudo-allergic reactions is greater in patients with recurrent rhino-sinusitis, nasal polyposis or chronic urticaria. Asthmatic patients are particularly at risk of dangerous reactions. Therefore tiaprofenic acid must not be administered to patients with a history of asthma.As NSAIDs can interfere with platelet function, they should be used with caution in patients with intracranial haemorrhage and bleeding diathesis. Cardiovascular, Renal and Hepatic Impairment: The administration of an NSAID may cause a dose dependent reduction in prostaglandin formation and precipitate renal failure. Patients at greatest risk of this reaction are those with impaired renal function, cardiac impairment, liver dysfunction, those taking diuretics and the elderly. Renal function should be monitored in these patients (see also section 4.3).Cardiovascular and cerebrovascular effects Appropriate monitoring and advice are required for patients with a history of hypertension and/or mild to moderate congestive heart failure as fluid retention and oedema have been reported in association with NSAID therapy.Clinical trial and epidemiological data suggest that use of some NSAIDs (particularly at high doses and in long term treatment) may be associated with a small increased risk of arterial thrombotic events (for example myocardial infarction or stroke). There are insufficient data to exclude such a risk for tiaprofenic acid.Patients with uncontrolled hypertension, congestive heart failure, established ischaemic heart disease, peripheral arterial disease, and/or cerebrovascular disease should only be treated with tiaprofenic acid after careful consideration. Similar consideration should be made before initiating longer-term treatment of patients with risk factors for cardiovascular disease (e.g. hypertension, hyperlipidaemia, diabetes mellitus, smoking).SLE and mixed connective tissue disease:In patients with systemic lupus erythematosus (SLE) and mixed connective tissue disorders there may be an increased risk of aseptic meningitis (see section 4.8). | |