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. 2022 Jul 4;12(7):e055551. doi: 10.1136/bmjopen-2021-055551

Table 1.

Drugs implicated in patient episodes with adverse drug reactions (ADRs)*

Drug class No of ADRs (%) Offending drug ADR
Diuretics 31 (14.2) Furosemide (13), spironolactone (8), bumetanide (6), bendroflumethiazide (2), co-amilofruse (1), indapamide (1) Renal impairment (18), electrolyte derangement (12), postural hypotension (1)
Steroid inhaler 27 (12.4) Steroid inhaler (27) Pneumonia (26), oral thrush (1)
Anticoagulants 21 (9.6) Warfarin (7), apixaban (5), edoxaban (4), rivaroxaban (4), enoxaparin (1) Minor bleeding (10), anaemia (4), intracranial haemorrhage (4), gastrointestinal bleed (3)
Proton pump inhibitor 18 (8.3) Lansoprazole (9), omeprazole (6), pantoprazole (3) Hypomagnesaemia (11), hyponatraemia (6), Clostridium difficile (1)
Antiplatelet 16 (7.4) Aspirin (13), clopidogrel (3) Intracranial haemorrhage (5), gastrointestinal bleed (4), minor bleeding (4), anaemia
Chemotherapy 16 (7.3) Chemotherapy (16) Neutropenic sepsis (8), sepsis (4), constipation (1), deranged electrolytes (1), rash (1), thrombocytopenia (1)
ACE inhibitor/angiotensin receptor blocker 14 (6.4) Losartan (4), ramipril (4), irbesartan (3), candesartan (1), lisinopril (1), perindopril (1) Renal impairment (9), postural hypotension (3), hyperkalaemia (1), renal failure (1)
Antidepressants & antipsychotics 13 (6.0) Mirtazapine (2), sertraline (2), sulpiride (2), carbemazapine (1), dosulepin (1), nortriptyline (1), olanzapine (1), risperidone (1) Confusion (3), hyponatraemia (3), parkinsonism (3), constipation (1), gastrointestinal bleed (1), prolonged QTc (1)
Opiates 13 (6.0) Codeine (5), morphine sulfate (3), oxycodone (2), tramadol (2), buprenorphine (1) Constipation (6), confusion (4), respiratory depression (2), hallucinations (1)
Other 49 (22.4) Other (49) Other (49)

*In those with multiple ADRs, only the most severe ADR was included in this table, as defined by the Adapted Hartwig Severity Scale16 (see online supplemental material 1 for full list).

QTc, corrected QT interval.