| 0.9% sodium chloride |  | dehydration | intravenous fluid | | [Acute presentation of diabetes mellitus], [Infectious disease outbreak], [Postoperative complications] |
| 5% dextrose |  | hypoglycaemia | intravenous fluid | | [Acute presentation of diabetes mellitus], [Infectious disease outbreak], [Postoperative complications] |
| abciximab | | coronary angioplasty | glycoprotein IIb/IIIa receptor antagonist | | [Acute chest pain], [Epistaxis] |
| acarbose | | type 2 diabetes | alpha glucosidase inhibitor | | [Type 2 diabetes mellitus] |
| acitretin | | psoriasis | vitamin A analogue | | [Rash on extensor surfaces and joint pains] |
| acyclovir |  | Herpes virus infection | nucleoside analogue DNA inhibitor (prodrug) (Class: antiviral) | | [Dysuria], [Acute or chronic red eye], [Unwell neonate] |
| adalimumab | | rheumatoid arthritis | tumour necrosis factor inhibitor | | [Rash on extensor surfaces and joint pains] |
| adrenaline |  | cardiac arrest, shock, acute allergic reaction | sympathomimetic | | [Child with respiratory distress], [Compromised airway], [Out of hospital cardiac arrest], [Heart failure] |
| alendronate |  | osteoporosis | osteoclast inhibitor (Class: bisphosphonate) | | |
| allopurinol |  | gout | xanthine oxidase inhibitor | | [Gout / acute pain and swelling of knee] |
| aluminum hydroxide | | peptic ulcer disease | antacid | | |
| amiloride | | hypertension | distal tubule sodium reabsorption inhibitor (Class: diuretic) | | |
| amiodarone |  | arrhythmias | potassium channel blocker | | [Arrhythmias], [Out of hospital cardiac arrest] |
| amoxicillin and clavulanic acid |  | bacterial infection | transpeptidase inhibitor & beta-lactamase inhibitor (Class: antibacterial: beta lactam - penicillin) | | [Pneumonia] |
| amphetamine | | drugs of abuse | adrenergic neurotransmitter releaser | | [Alcohol and drug dependence disorders] |
| anastrazole | | breast cancer | aromatase inhibitor | | |
| artemesin | | | anti-malarial drugs | | [Febrile returning traveller] |
| artemisinin | | malaria | generates oxygen free radicals from heme (Class: antiprotozoal) | | |
| aspirin |  | ischaemic heart disease, cerebrovascular disease, peripheral vascular disease (antiplatelet), pain | cyclooxygenase inhibitor | | [Accidental overdose], [Acute chest pain], [Acutely painful limb], [Chronic limb pain], [Epistaxis], [Pre-admission and surgical risk assessment], [Preoperative assessment and management], [Risk assessment in early pregnancy], [Self-harm] |
| atenolol |  | hypertension, ischaemic heart disease, arrhythmias | beta-1 adrenoceptor antagonist | bisoprolol, carvedilol | |
| atropine |  | bradycardia, treatment of cholinesterase inhibitor overdose, pupil dilation | muscarinic cholinergic receptor antagonist | | [Infant with an altered light reflex and watery eye] |
| azathioprine | | inflammatory bowel disease, inflammatory arthritis | purine synthesis inhibitor (prodrug) | | [Itching child] |
| beclomethasone |  | asthma, chronic obstructive pulmonary disease | anti-inflammatory corticosteroid | | [Chronic shortness of breath], [Adult eczema], [Headache, morning stiffness and shoulder pain], [Hip fracture], [Itching child], [Sudden loss of vision and headache], [Sudden onset shortness of breath] |
| bendrofluazide |  | hypertension | distal tubule sodium reabsorption inhibitor (Class: diuretic: thiazide) | | |
| benserazide | | used with levodopa (Parkinson's disease) | DOPA-decarboxylase inhibitor | | |
| benzoylperoxide | | acne | acne treatments | | |
| benztropine |  | dystonia, Parkinson's disease | muscarinic cholinergic receptor antagonist/histamine (H1) receptor antagonist | | |
| benzylpenicillin |  | bacterial infection, prophylaxis against group B streptococcal disease in labour | transpeptidase inhibitor (Class: antibacterial: beta lactam - penicillin) | benzathine penicillin, flucloxacillin, amoxicillin | [Child with respiratory distress], [Child with sore joints] |
| bezafibrate |  | dyslipidemia | fibrate | | [Acutely painful limb] |
| budesonide |  | asthma, chronic obstructive pulmonary disease | anti-inflammatory corticosteroid | | [Child with respiratory distress], [Chronic shortness of breath], [Adult eczema], [Headache, morning stiffness and shoulder pain], [Hip fracture], [Itching child], [Sudden loss of vision and headache], [Sudden onset shortness of breath] |
| cabergoline | | hyperprolactinemia | dopamine receptor agonist | bromocriptine | |
| calcipotriol | | psoriasis | vitamin D derivative | | [Rash on extensor surfaces and joint pains] |
| carbamazepine |  | epilepsy | sodium channel blocker | | [Bipolar affective disorder], [Chronic illness in paediatrics], [Unexplained loss of consciousness] |
| carbidopa | | used with levodopa (Parkinson's disease) | DOPA-decarboxylase inhibitor | | |
| carbimazole |  | hyperthyroidism | thyroid peroxidase inhibitor | | [Hyperthyroidism], [Hypothyroidism] |
| cephazolin |  | bacterial infection | transpeptidase inhibitor (Class: antibacterial: beta-lactam - cephalosporin) | cefuroxime, ceftriaxone | [Child with red swelling around one eye], [Child with respiratory distress], [Osteomyelitis], [Preoperative assessment and management] |
| cetirizine |  | allergy | histamine (H1) receptor antagonist | | |
| chloramphenicol |  | bacterial infection | prevents 50S transpeptidation on 50S ribosome subunit (Class: antibacterial) | | [Pancytopenia] |
| chlorpheniramine | | allergy | histamine (H1) receptor antagonist | | |
| cholecalciferol |  | osteoporosis | vitamin D | | [6 week check], [Child with abnormal gait], [Infant or child with pallor], [Rash on extensor surfaces and joint pains] |
| cholestyramine | | dyslipidemia | ion-exchange resin | | [Acutely painful limb] |
| ciclosporin | | organ transplant immunosuppression | calcineurin inhibitor (Class: immunosuppressant) | | [Itching child], [Rash on extensor surfaces and joint pains] |
| cilazapril |  | hypertension, heart failure | angiotensin converting enzyme inhibitor | | [Heart failure] |
| cimetidine | | peptic ulcer disease | histamine (H2) receptor antagonist | | |
| ciprofloxacin | | infection | gyrase inhibitor (Class: antibacterial: fluoroquinolone) | norfloxacin | [Dysuria] |
| cisplatin | | cancer | formation of DNA crosslinks (Class: chemotherapy) | | |
| clomiphene | | infertility | selective estrogen receptor modulator (Class: ovulation induction agent) | | [Infertility] |
| clonidine | | hypertension | alpha-2 adrenoceptor agonist | | |
| clopidogrel |  | ischaemic heart disease, cerebrovascular disease, peripheral vascular disease | ADP receptor (P2Y12) inhibitor | | [Acute chest pain], [Acutely painful limb], [Chronic limb pain], [Epistaxis], [Pre-admission and surgical risk assessment], [Preoperative assessment and management] |
| clozapine | | psychosis | dopamine, serotonin, histamine (H1) and adrenergic antagonist | | [Acute psychosis] |
| coal tar | | psoriasis | skin cell growth modulator | | [Rash on extensor surfaces and joint pains] |
| codeine |  | diarrhoea, analgesia, drugs of abuse | mu-opiate agonist (prodrug) | | [Dislocated joint] |
| colchicine |  | gout | microtubule inhibitor | | |
| colloids | | dehydration | extracellular volume expander | | |
| cyclizine |  | nausea and vomiting | histamine (H1) receptor antagonist | | |
| cyclophosphamide | | cancer, autoimmune disease | nitrogen mustard alkylating agent | chlorambucil, melphalan | [Lymphadenopathy and splenomegaly] |
| cyproterone acetate | | prostate disease, androgen excess syndromes | androgen receptor antagonist | | |
| dabigatran |  | treatment and prevention of venous thromboembolism, atrial fibrillation | thrombin inhibitor | rivaroxaban | [Unexplained loss of consciousness] |
| desferrioxamine | | poisoning, iron overload disorders | iron chelating agent | | |
| desmopressin | | synthetic vasopressin, promotes release of von Willebrand factor/VIII | anti-diuretic hormone receptor agonist, promotes release of von Willebrand factor/VIII | | [Child with disorder of elimination], [Diabetes insipidus] |
| dexamethasone |  | inflammatory disease, steroid deficiency, foetal lung maturation | anti-inflammatory corticosteroid | methylprednisolone | [Adrenal crisis], [Obesity], [Secondary hypertension], [Adult eczema], [Headache, morning stiffness and shoulder pain], [Hip fracture], [Itching child], [Sudden loss of vision and headache], [Sudden onset shortness of breath] |
| diazepam |  | sedation | benzodiazepine receptor agonist | | |
| diclofenac |  | pain, inflammation | cyclooxygenase inhibitor (Class: non-steroidal anti-inflammatory drug) | | |
| digoxin |  | arrhythmias, heart failure | sodium potassium ATPase inhibitor | | [Accidental overdose], [Heart failure] |
| diltiazem |  | arrhythmias, ischaemic heart disease | calcium channel blocker (Class: nondihydropyridine calcium channel blocker) | | |
| docusate sodium |  | constipation (irritable bowel syndrome) | surfactant | | [Late pregnancy complications] |
| domperidone |  | prokinetic agent, nausea and vomiting | dopamine receptor antagonist | | [Bowel obstruction], [Penetrating chest trauma], [Sudden onset severe headache] |
| donepezil | | Alzheimer's disease | acetyl cholinesterase inhibitor | | |
| doxazosin | | hypertension, benign prostatic hypertrophy | alpha-1 adrenoceptor antagonist | | |
| doxorubicin | | malignancy | DNA intercalation (Class: chemotherapy: anthracycline) | daunorubicin | |
| doxycycline |  | bacterial infection | tetracycline - blocks tRNA access to 30S ribosome subunit (Class: antibacterial) | | [Pneumonia] |
| eformoterol |  | asthma | beta-2 adrenoceptor agonist | | [Chronic shortness of breath], [Sudden onset shortness of breath] |
| emulsifying ointment | | eczema, dermatitis | emollient | | [Itching child] |
| epoetin (recombinant human erythropoietin) | | anaemia (mainly renal and related to cancer chemotherapy) | haematopoietic growth factor | | |
| ergometrine |  | post partum haemorrhage | uterine muscle contraction stimulant | | |
| erythromycin |  | bacterial infection | prevents transpeptidation on 50S ribosome subunit (Class: antibacterial: macrolide) | clarithromycin, clindamycin, azithromycin, roxythromycin | [Child with respiratory distress], [Chronic bowel motility problems], [Pneumonia], [Chronic limb pain], [Patient with jaundice], [Chronic sputum production], [Skin and soft tissue infection] |
| etanercept | | inflammatory arthritis | tumour necrosis factor inhibitor | | [Rash on extensor surfaces and joint pains] |
| ethanol | | treatment of methanol overdose | positive allosteric modulator of GABA-A receptor | | [Alcohol and drug dependence disorders], [Chronic liver disease] |
| ethinylestradiol/levonorgestrel |  | contraception | oestrogen analogue/progesterone receptor agonist (Class: combined oral contraceptive) | | |
| ethosuximide | | epilepsy | T type calcium channel blocker | | [Unexplained loss of consciousness] |
| etoposide | | cancer | inhibition of topoisomerase leading to DNA strand breakage (Class: chemotherapy) | | |
| felodipine |  | hypertension | calcium channel blocker (Class: dihydropyridine) | amlodipine | |
| fexofenadine | | allergy | histamine (H1) receptor antagonist | | |
| filgrastim (recombinant human granulocyte colony-stimulating factor) | | neutropenia | haematopoietic growth factor | epoetin | |
| finasteride | | benign prostatic hypertrophy, prostate cancer, androgenic alopecia, androgen excess syndromes | 5-alpha-reductase inhibitor | | [Elevation of prostate-specific antigen] |
| fluconazole |  | fungal infections | ergosterol synthesis inhibitor (Class: antifungal: triazole) | miconazole | [Fever and adenopathy], [Dysuria] |
| fludarabine | | haematological malignancy | purine analog DNA synthesis inhibitor (Class: chemotherapy) | cytosine arabinoside | [Lymphadenopathy and splenomegaly] |
| fludrocortisone | | addison's disease | mineralocorticoid receptor agonist | | [Adrenal crisis] |
| flumazenil |  | benzodiazepine overdose | benzodiazepine receptor antagonist | | [Anxiety disorder], [Delirium / dementia], [Preoperative assessment and management], [Unexplained loss of consciousness] |
| fluoxetine |  | depression, menopausal symptoms | selective serotonin reuptake inhibitor | paroxetine, citalopram | [Major depressive episode] |
| fluticasone |  | asthma | anti-inflammatory corticosteroid | | [Child with respiratory distress], [Chronic shortness of breath], [Adult eczema], [Headache, morning stiffness and shoulder pain], [Hip fracture], [Itching child], [Sudden loss of vision and headache], [Sudden onset shortness of breath] |
| folic acid |  | folate deficiency, pregnancy | folic acid supplementation | | [Child with abnormal gait], [Gynaecological abdominal pain], [Risk assessment in early pregnancy] |
| frusemide |  | hypertension, heart failure | loop of Henle sodium reabsorption inhibitor (Class: loop diuretic) | | |
| gabapentin |  | epilepsy, analgesia | GABA analogue | | [Unexplained loss of consciousness] |
| gemfibrozil | | dyslipidemia | peroxisome proliferator-activated receptor alpha agonist | | |
| gentamicin |  | bacterial infection | ribosomal protein synthesis inhibitor (Class: antibacterial: aminoglycoside) | amikacin | [Hearing loss], [Postoperative complications], [Flank pain and dysuria], [Dysuria] |
| glecaprevir | | Part of combination antivural treatment of chronic hepatitis C | Antiviral, inhibitor of Hepatitis C virus serine protease which is essential for viral replication | | [Chronic liver disease] |
| glipizide |  | type 2 diabetes | pancreatic beta cell stimulant (Class: sulphonylurea) | gliclazide | |
| glyceryl trinitrate |  | ischaemic heart disease | nitric oxide prodrug | | [Acute chest pain], [Perianal pathology], [Stable angina] |
| goserelin | | prostate disease, infertility | gonadotropin releasing hormone superagonist | | |
| haloperidol |  | psychosis | dopamine receptor antagonist | | [Acute psychosis], [Agitated and combative patient] |
| heparin-low molecular weight |  | prophylaxis/treatment of venous thromboembolism | antithrombotic agent | rivaroxaban | |
| heparin-unfractionated |  | prophylaxis/treatment of venous thromboembolism, acute peripheral arterial occlusion | antithrombotic agent | rivaroxaban | |
| hydrocortisone |  | inflammatory disease, steroid deficiency, topical: eczema, dermatitis | corticosteroid receptor agonist | methylprednisolone | [Adrenal crisis], [Panhypopituitarism] |
| hydroxycobalamin |  | vitamin B12 replacement | vitamin B12 deficiency | | |
| hydroxyurea | | myeloproliferative neoplasmsneoplasms | inhibits ribonucleotide reductase (Class: chemotherapy) | | |
| hypromellose | | dry eyes | water retaining celluloid | | |
| ibuprofen |  | pain, inflammation | cyclooxygenase inhibitor (Class: non-steroidal anti-inflammatory drug) | | |
| imatinib | | chronic myeloid leukaemia, gastrointestinal stromal tumours | occupies active tyrosine kinase site in abl, c-kit and PDGF-R | | [Polycythaemia] |
| infliximab | | inflammatory bowel disease, inflammatory arthritis | tumour necrosis factor inhibitor | | [Rash on extensor surfaces and joint pains] |
| insulin |  | diabetes | insulin replacement | | [Acute presentation of diabetes mellitus], [Diabetes in pregnancy], [Preoperative assessment and management], [Type 1 diabetes mellitus], [Type 2 diabetes mellitus] |
| interferon | | cancer, hepatitis B & C, multiple sclerosis | antiproliferative, pro-apoptotic, anti-angiogenic, immune modulation (Class: immunosuppressant) | thalidomide, lenalidomide | |
| intravenous immunoglobulin | | immune deficiency, autoimmune disease | immunoglobulin replacement, regulation of immune response | | |
| iodine | | pregnancy | dietary supplement | | [Fetal health], [Gynaecological abdominal pain], [Hyperthyroidism], [Hypothyroidism], [Infertility], [Pregnancy diagnosis], [Gradual deterioration in visual acuity over time] |
| ipratropium |  | asthma, chronic obstructive pulmonary disease | muscarinic cholinergic receptor antagonist | | [Child with respiratory distress], [Chronic shortness of breath], [Sudden onset shortness of breath] |
| ipratropium+salbutamol | | asthma, chronic obstructive pulmonary disease | compound bronchodilator | | |
| iron |  | iron deficiency | haematinic; mineral | | [6 week check], [Anaemia], [Chronic bowel motility problems], [Chronic upper abdominal symptoms], [Haemochromatosis], [Heavy menstrual periods], [Infant or child with pallor], [Overdose in a child or adolescent], [Upper gastrointestinal bleeding] |
| isoniazid |  | tuberculosis | mycolic acid synthesis inhibitor (prodrug) (Class: antibacterial) | | [Haemoptysis and abnormal chest X-ray], [Chronic sputum production] |
| isosorbide mononitrate |  | ischaemic heart disease | nitric oxide prodrug | | |
| isotretinoin | | acne | vitamin A analogue | | |
| labetalol | | hypertension | beta-1 adrenoceptor antagonist | | |
| lactulose |  | constipation | osmotic laxative | | [Chronic bowel motility problems] |
| lamotrigine | | epilepsy, bipolar disorder | glutamate release sodium channel blocker | | [Bipolar affective disorder], [Chronic illness in paediatrics], [Unexplained loss of consciousness] |
| latanoprost | | glaucoma | prostaglandin F2alpha analogue | | |
| levodopa |  | Parkinson's disease | dopamine receptor agonist (prodrug) | | |
| levodopa+benserazide | | Parkinson's disease | dopamine receptor agonist (prodrug) and DOPA-decarboxylase inhibitor | | |
| levodopa+carbidopa | | Parkinson's disease | dopamine receptor agonist (prodrug) and DOPA-decarboxylase inhibitor | | |
| lignocaine |  | pain, arrhythmias | sodium channel blocker | | [Arrhythmias] |
| lithium | | bipolar disorder | sodium analogue | | [Bipolar affective disorder], [Self-harm] |
| loperamide | | diarrhoea | mu-opioid receptor agonist | | [Chronic bowel motility problems] |
| lorazepam |  | sedation | benzodiazepine receptor agonist | | [Altered level of consciousness in a child] |
| losartan |  | hypertension | angiotensin II receptor antagonist | | [Heart failure], [Secondary hypertension], [Sudden onset severe headache] |
| lysergic acid diethylamide | | drugs of abuse | dopamine receptor partial agonist | | |
| magnesium sulphate |  | eclampsia | intravenous fluid | | [Late pregnancy complications], [Acute presentation of diabetes mellitus], [Infectious disease outbreak], [Postoperative complications] |
| MDMA (3,4-methylenedioxy-N-methylamphetamine, ectasy) | | drugs of abuse | amphetamine like sympathomimetic | | |
| medroxy progesterone acetate | | menopause, heavy menstrual bleeding | progesterone receptor agonist | levonorgestrel, desogestrel | |
| meropenem |  | Broad spectrum activity against gram positive, gram negative and anaerobic organisms. Used in severe hospital-acquired infection and complex lower respiratory infections such as in cystic fibrosis | beta-lactamase resistant beta-lactam cell wall damage (Class: antibacterial: beta-lactam - carbapenem) | | [Postoperative complications] |
| mesalazine | | inflammatory bowel disease | salicylate like anti-inflammatory | | |
| metformin |  | type 2 diabetes | insulin sensitizer | | [Amenorrhoea], [Diabetes in pregnancy], [Infertility], [Obesity], [Type 2 diabetes mellitus] |
| methotrexate | | cancer, autoimmune disease | inhibition of dihydrofolate reductase, inhibition of purine metabolism, inhibition of T lymphocyte activity (Class: immunosuppressant) | | [Gynaecological abdominal pain], [Itching child], [Rash on extensor surfaces and joint pains] |
| methyldopa | | hypertension | alpha-2 adrenoceptor agonist (prodrug) | | [Risk assessment in early pregnancy] |
| metoclopramide |  | nausea and vomiting | dopamine (D2) receptor antagonist | | [Bowel obstruction], [Chronic bowel motility problems], [Chronic upper abdominal symptoms], [Head trauma], [Penetrating chest trauma], [Preoperative assessment and management], [Sudden onset severe headache] |
| metoprolol |  | hypertension, ischaemic heart disease, arrhythmias, congestive heart failure | beta-1 adrenoceptor antagonist | bisoprolol, carvedilol | |
| metronidazole |  | bacterial infection | cysteine bearing enzyme inhibitor (prodrug) (Class: antibacterial: nitroimidazole) | | [Acute abdominal pain], [Chronic limb pain], [Diarrhoea], [Perianal pathology], [Postoperative complications] |
| mifepristone | | termination of pregnancy | progesterone receptor agonist, g;ucocorticoid receptor antagonist | | |
| misoprostol |  | miscarriage (preoperative) | prostaglandin E1 analogue | | [Gynaecological abdominal pain] |
| montelukast | | asthma, chronic obstructive pulmonary disease | leukotriene receptor antagonist | | [Child with respiratory distress], [Sudden onset shortness of breath] |
| morphine |  | pain, drugs of abuse | mu-opioid receptor agonist | | |
| N-acetylcysteine |  | paracetamol overdose | glutathione precursor (prodrug) | | [Overdose in a child or adolescent] |
| naloxone |  | opioid overdose | mu-opioid receptor antagonist | | [Preoperative assessment and management] |
| nifedipine |  | hypertension, angina, tocolysis for preterm labour | calcium channel blocker (Class: dihydropyridine) | amlodipine | [Late pregnancy complications] |
| nitrofurantion | | Treatment and prophylaxis of urinary tract infection | Antibiotic: Interferes with bacterial ribosomal proteins to inhibit several bacterial biochemical processes. Active against typical urinary pathogens including E. coli, Enterococcus faecalis, Klebsiella species | | [Dysuria], [Flank pain and dysuria] |
| norethisterone |  | menopause, contraception | progesterone receptor agonist | levonorgestrel, desogestrel | [Contraception] |
| nortriptyline |  | depression, pain | neuroamine transmitter uptake inhibitor (Class: antidepressant: tricyclic) | amitriptyline | |
| oestradiol valerate | | menopause, osteoporosis | oestrogen analogue | conjugated equine oestrogen, oestradiol | |
| olanzapine | | psychosis | mixed dopamine, serotonin, muscarinic receptor antagonist | | [Acute psychosis], [Agitated and combative patient], [Delirium / dementia] |
| omeprazole |  | peptic ulcer disease | proton pump inhibitor | | [Chronic upper abdominal symptoms], [Painful hands in the cold] |
| ondansetron |  | nausea and vomiting | serotonin (5HT3) antagonist | | [Acute abdominal pain], [Bowel obstruction], [Head trauma], [Penetrating chest trauma], [Preoperative assessment and management], [Sudden onset severe headache] |
| oseltamivir | | Treatment and prophylaxis of influenza | Inhibits viral neuraminidase and reduces replication of influenza virus | | [Chronic shortness of breath], [Upper respiratory tract symptoms] |
| oxazolidinone | | | prevents initiation of protein synthesis at 50S ribosome subunit (Class: antibacterial: oxazolidinone) | | |
| oxycodone |  | pain | mu-opioid receptor agonist | | |
| oxygen |  | hypoxia | oxygenation | | [Anaemia], [Chronic shortness of breath], [Infant or child with a murmur], [Neonatal stridor], [Labour] |
| oxytocin |  | induction or augmentation of labour, post partum haemorrhage | oxytocin receptor agonist | | |
| paclitaxel | | cancer | stabilises microtubules (Class: chemotherapy) | | |
| paracetamol |  | pain, inflammation | cyclooxygenase inhibitor and cannabinoid modulator | | [Accidental overdose], [Acute abdominal pain], [Acute abdominal pain in children and adolescents], [Child or adolescent with a headache], [Dislocated joint], [Head trauma], [Inflammatory low back pain], [Overdose in a child or adolescent], [Postoperative complications], [Preoperative assessment and management], [Self-harm], [Superficial injuries] |
| permethrin | | scabies | sodium channel opener | | [Rest home resident with itching and rash] |
| pethidine |  | pain | mu-opioid receptor agonist | | [Dislocated joint] |
| phenobarbital | | epilepsy | GABA-A receptor sensitizer and agonist | | [Unexplained loss of consciousness] |
| phenytoin |  | epilepsy | sodium channel blocker | | [Altered level of consciousness in a child], [Chronic illness in paediatrics], [Unexplained loss of consciousness] |
| pioglitazone | | type 2 diabetes | peroxisome proliferator-activated receptor gamma agonist | | |
| pramipexole | | Parkinson's disease | dopamine receptor agonist | | |
| prednisone |  | inflammatory disease, steroid deficiency | anti-inflammatory corticosteroid | methylprednisolone | [Adrenal crisis], [Chronic shortness of breath], [Adult eczema], [Headache, morning stiffness and shoulder pain], [Hip fracture], [Itching child], [Sudden loss of vision and headache], [Sudden onset shortness of breath] |
| probenecid | | gout | organic anion transporter antagonist | | |
| prochlorperazine |  | nausea and vomiting | dopamine receptor antagonist | | |
| procyclidine | | Parkinson's disease | muscarinic cholinergic receptor antagonist | | |
| propofol | | anaesthesia | GABA-A receptor sensitizer and sodium channel blocker | | [Preoperative assessment and management] |
| propranolol | | hypertension, anxiety | beta-1 adrenoceptor antagonist | | |
| protamine sulfate | | heparin reversal | binds heparin to form stable ion pair without anticoagulant activity | | |
| psyliiium husk | | constipation | water retaining bulk expander | | [Chronic bowel motility problems] |
| pyridoxine |  | pyridoxine deficiency, sideroblastic anaemia | vitamin B6 replacement | | |
| quetiapine | | psychosis | dopamine,serotonin, histamine (H1) and alpha-adrenergic antagonist | | [Acute psychosis], [Delirium / dementia] |
| raloxifene | | osteoporosis | selective estrogen receptor modulator | | |
| ranibizumab | | wet age-related macular degeneration | vascular endothelial growth factor inhibitor | | [Gradual deterioration in visual acuity over time] |
| ranitidine |  | peptic ulcer disease | histamine (H2) receptor antagonist | | |
| rasagiline | | Parkinson's disease | mono-amine-oxidase B inhibitor | | |
| rifampicin |  | tuberculosis | bacterial DNA-dependent RNA polymerase inhibitor (Class: antibacterial) | | [Haemoptysis and abnormal chest X-ray], [Chronic sputum production] |
| risperidone |  | psychosis | dopamine, serotonin, histamine (H1) and adrenergic antagonist | | [Acute psychosis], [Delirium / dementia] |
| rituximab | | rheumatoid arthritis, B cell lymphoma/leukaemia | CD20 B cell killer (Class: monoclonal antibody) | | [Lymphadenopathy and splenomegaly] |
| ropinirole | | Parkinson's disease | dopaminergic agonist | | |
| salbutamol |  | asthma, chronic obstructive pulmonary disease | beta-2 adrenoceptor agonist | | [Child with respiratory distress], [Chronic shortness of breath], [Sudden onset shortness of breath] |
| salmeterol | | asthma, chronic obstructive pulmonary disease | beta-2 adrenoceptor agonist | | [Child with respiratory distress], [Chronic shortness of breath], [Sudden onset shortness of breath] |
| scopolamine | | motion sickness | muscarinic cholinergic receptor antagonist | | [Bowel obstruction], [Penetrating chest trauma], [Sudden onset severe headache] |
| selegiline | | Parkinson's disease | mono-amine-oxidase B inhibitor | | |
| sennoside B |  | constipation (irritable bowel syndrome) | intestinal nerve plexus stimulant | | |
| simvastatin |  | dyslipidemia | HMG-CoA reductase inhibitor | | |
| sitagliptin | | type 2 diabetes | dipeptidyl peptidase-4 inhibitor | | |
| sodium valproate |  | epilepsy | GABA neurotransmission sensitizer | | [Bipolar affective disorder], [Unexplained loss of consciousness] |
| sotalol | | arrhythmias | beta-adrenoceptor antagonist and potassium channel blocker | | [Arrhythmias] |
| spironolactone |  | hypertension, heart failure | aldosterone antagonist | | [Heart failure], [Secondary hypertension] |
| streptokinase |  | myocardial infarction, cerebrovascular accident (stroke) | plasminogen activator | | [Acute chest pain] |
| sulphamethoxazole/trimethoprim |  | bacterial infection | dihydrofolate reductase inhibitor & dihydropteroate synthetase inhibitor (Class: antibacterial: sulfonamide) | trimethoprim | [Flank pain and dysuria] |
| sulphasalazine | | inflammatory arthritis | intestinal inflammation modulator | | |
| sumatriptan |  | migraine | serotonin (5HT1) receptor agonist | | |
| suxamethonium | | anaesthesia | nicotinic cholinergic receptor agonist | | |
| tamoxifen | | breast cancer | mixed oestrogen receptor agonist/antagonist | | |
| temazepam |  | sedation | benzodiazepine receptor agonist | | |
| tenofovir |  | HIV/HBV infection | nucleoside reverse transcriptase inhibitor (Class: antiviral) | | [Fever and adenopathy], [Chronic liver disease] |
| terbinafine | | fungal infection | ergosterol synthesis inhibitor (Class: antifungal) | | [Rest home resident with itching and rash] |
| testosterone | | hypogonadism | testosterone receptor agonist | | [Obesity], [Panhypopituitarism] |
| theophylline | | asthma, chronic obstructive pulmonary disease | adenosine receptor antagonist and phosphodiesterase inhibitor | | |
| thiamine |  | thiamine deficiency,Wernicke’s encephalopathy | vitamin B1 replacement | | [Alcohol and drug dependence disorders] |
| thiopental sodium | | anaesthesia | GABA-A receptor sensitizer | | |
| tiotropium | | asthma, chronic obstructive pulmonary disease | muscarinic cholinergic receptor antagonist | | [Chronic shortness of breath] |
| tissue plasminogen activator(recombinant) |  | thrombolytic therapy of ischaemic stroke, myocardial infarction, massive pulmonary embolism | catalysis of plasminogen to plasmin | | |
| tramadol |  | pain | mu-receptor opioid partial agonist (prodrug) | | [Dislocated joint] |
| tranexamic acid |  | prevention and treatment of excessive bleeding (menorrhagia, surgery, coagulation/platelet disorders) | antifibrinolytic | | [Heavy menstrual periods] |
| tranylcypromine | | depression | mono-amine-oxidase A inhibitor | | |
| trastuzumab | | breast cancer | HER2/neureceptor antagonist (Class: monoclonal antibody) | | |
| ustekinumab | | psoriasis | interleukin (12 and 23) inhibitor | | |
| vancomycin |  | bacterial infections | cell wall damage - interferes with transpeptidation between peptidoglycan subunits | | [Chronic limb pain], [Fever and a new murmur], [Pre-admission and surgical risk assessment], [Fever and headache] |
| vecuronium | | anaesthesia | nicotinic cholinergic receptor antagonist | | |
| venlafaxine | | depression | serotonin-noradrenaline reuptake inhibitor (SNRI) | | |
| verapamil | | hypertension, arrhythmias | calcium channel blocker (Class: phenylalkylamine) | | |
| vinblastine | | cancer | disrupts microtubule assembly (Class: chemotherapy) | | |
| vitamin K1 |  | prophylaxis/treatment haemorrhagic disease of the newborn, warfarin reversal, vitamin K deficiency | cofactor for gamma-glutamyl carboxylase (catalyses carboxylation of glutamic acid residues on vitamin K-dependent proteins) | | |
| warfarin |  | venous thromboembolism, valvular disease, atrial fibrillation | vitamin K epoxide reductase inhibitor | rivaroxaban | [Accidental overdose], [Acutely painful limb], [Arrhythmias], [Deep vein thrombosis], [Epistaxis], [Fever and a new murmur], [Unexplained loss of consciousness] |
| zoledronate | | osteoporosis | osteoclast inhibitor (Class: bisphosphonate) | | |
| zopiclone |  | sedation | benzodiazepine receptor agonist | | [Self-harm] |