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Table 5 Summary of cases adjudicated

From: A multi-center cross-sectional study of Chinese Herbal Medicine-Drug adverse reactions using active surveillance in Singapore’s Traditional Chinese Medicine clinics

Case

Age, Sex, Ethnicity

Smoking history, Alcohol consumption

Self-reported medication use (Oral administration unless otherwise specified)

Chinese herbal medicine consumed (Oral administration unless otherwise specified)

Adverse Event, Duration

Causality Assessment Outcome (WHO, Naranjo)

1

84, Female, Chinese

None, None

Osimertinib

Panax ginseng, Astragalus membranaceus, Atractylodes macrocephala, Citrus reticulata, Scutellaria barbata, Scutellaria baicalensis, Hedyotis diffusai, Angelica sinensis, Radix Scrophulariae, Hordeum vulgare, Hottuynia cordata, Stemona tuberosa, Aster tataricus, Tussilago farfara, Chicken's Gizzard-membrane, Crataegus pinnatifida

Persistent rash and itch, 1 year

Unlikely, Doubtful

2

34, Male, Chinese

None, None

Empagliflozin/Linagliptin

Schisandra sinensis, Lycium barbarum, Plantago asiatica, Rubus chingii, Cuscuta chinensis, Ligustrum lucidum, Codonopsis pilosula, Atractylodes macrocephala, Poria cocos, Eucommia ulmoides, Taxillus chinensis, Epimedium grandiflorum, Anemarrhena asphodeloides, Taraxacum officinale, Citrus reticulata, Nelumbo nucifera, Lablab purpureus, Adenophora stricta, Wurfbainia villosa

Diarrhea and feeling bloated and gassy in stomach, 3 weeks

Likely, Possible

3

56, Male, Chinese

None, None

Etoricoxib

†Herbal formula 1: Shu Jin Huo Xue Tang

Additional herbs: Morus alba, Pueraria montana, Lonicera japonica, Scutellaria baicalensis

Malaise and lethargy, 1 week

Possible, Possible

4

62, Female, Chinese

None, None

Metformin, Aspirin

†Herbal formula 1: An Shen He Ji

†Herbal formula 2: Tong Luo Hua Tan He Ji

†Herbal formula 3: Bao He He Ji

†Herbal formula 4: Qing Gan Ming Mu Pian

Headache and dizziness, 1 week

Possible, Possible

5

34, Male, Chinese

None, None

Hydroxyzine

Bupleurum chinense, Paeonia lactiflora, Nepeta cataria, Saposhnikovia divaricata, Citrus reticulata, Poria cocos, Polygonum multiflorum, Dictamnus dasycarpus, Ligusticum striatum, Platycodon grandiflorus, Glycyrrhiza glabra, Paeonia suffruticosa, Gardenia jasminoides, Lycopus lucid, Radix Scrophulariae, Rehmannia glutinosa, Angelica sinensis, Ziziphus spinosa, Ossis Mastodi Fossilia

Stomach discomfort (churning) and diarrhea, 1 month

Unlikely, Possible

6

61, Male, Chinese

None, None

Aspirin, Simvastatin

†Herbal formula 1: Shao Yao Gan Cao He Ji

†Herbal formula 2: Mu Xiang Shun Qi He Ji

†Herbal formula 3: Guan Jie Gu Tong Pian

Stomach discomfort (mild pain) and diarrhea, 1 week

Unlikely, Doubtful

7

76, Female, Chinese

None, None

Aspirin, Carbimazole

†Herbal formula 1: Dan Zhi Xiao Yao He Ji

†Herbal formula 2: Gan Lu Yin

†Herbal formula 3: Ban Xia Xie Xin He Ji

†Herbal formula 4: Yue Ju Bao He Pian

Stomach discomfort (mild pain) and headache, 2 weeks

Unlikely, Doubtful

8

47, Female, Chinese

None, None

Bisoprolol, Atorvastatin, Letrozole, Trastuzumab (Intravenous infusion)

Astragalus membranaceus, Atractylodes macrocephala, Poria cocos, Codonopsis pilosula, Glycyrrhiza glabra, Akebia quinata, Spatholobus suberectus, Coix lacryma-jobi, Ophiopogon japonicus, Schisandra sinensis, Alisma orientale, Gastrodia elata, Cibotium barometz, Eucommia ulmoides, Maydis seigma, Coptis chinensis

Occasional nausea and vomit, 3 weeks

Unlikely, Possible

9

72, Male, Chinese

None, None

Amlodipine, Labetalol

†Herbal formula 1: Xiang Sha Liu Jun Zi Ke Li

Additional herbs: Maydis seigma, Magnolia liliiflora, Xanthium strumarium, Coptis chinensis, Forsythia suspensa, Atractylodes lancea, Alisma orientale, Citrus reticulata, Peucedanum praeruptorum, Perilla frutescens, Sinapis alba, Raphanus sativus, Descurainia sophia, Bile Arisaema, Lysimachia nummularia, Siegesbeckia orientalis, Agrimonia pilosa, Platycladus orientalis, Astragalus membranaceus, Spatholobus suberectus, Anemarrhena asphodeloides

Recurring headache every morning, 2 weeks

Unlikely, Doubtful

10

31, Female, Indonesian

None, None

Estradiol, Norgestrel

Pseudostellaria heterophylla, Schisandra sinensis, Lycium babarum, Cuscuta chinensis, Rubus chingii, Plantago asiatica, Dipsacus asperoides, Ligustrum lucidum, Angelica sinensis, Curcuma aromatica, Pinellia ternata, Scutellaria baicalensis, Prunella vulgaris, Codonopsis pilosula, Dioscorea opposita, Bupleurum chinense

Stomach discomfort (mild pain), 1 week

Possible, Possible

11

77, Female, Chinese

None, None

Aspirin

Paeonia lactiflora, Bupleurum chinense, Poncirus trifoliata, Magnolia officinalis, Angelica sinensis, Pinellia ternata, Perilla frutescens, Prunus armeniaca, Raphanus sativus, Chicken's Gizzard-membrane, Medicated Leaven, Trichosanthis Radix, Polygonum multiflorum, Platycladus orientalis, Ziziphus spinosa, Ligusticum striatum, Astragalus membranaceus, Pseudostellaria heterophylla, Aloe vera, Glycyrrhiza glabra

Stomach-ache (cramping sensation), 1 week

Possible, Possible

12

32, Male, Chinese

None, None

Codeine, Fexofenadine, Estazolam

Bupleurum chinense, Angelica sinensis, Poria cocos, Atractylodes macrocephala, Paeonia lactiflora, Glycyrrhiza glabra, Paeonia suffruticosa, Gardenia jasminoides, Mentha canadensis, Ziziphus spinosa, Lilii bulbus, Codonopsis pilosula, Ophiopogon japonicus, Schisandra sinensis, Ossis Mastodi Fossilia, Ostrea edulis

Fatigue and sleepiness, 1.5 weeks

Unlikely, Possible

13

42, Female, Chinese

None, None

Propanolol

†Herbal formula 1: Liu Wei Di Huang Wan

†Herbal formula 2: Dan Zhi Xiao Yao San

Additional herbs: Eucommia ulmoides, Radix Scrophulariae, Prunella vulgaris, Ostrea edulis, Fritillaria thunbergii, Anemarrhena asphodeloides, Phellodendron amurense, Pinellia ternata, Citrus reticulata, Forsythia suspensa, Pueraria montana, Coix lacryma-jobi

Stomach discomfort (churning) and bloating, 1 week

Unlikely, Possible

14

74, Female, Chinese

None, None

Rivaroxaban, Rabeprazole

Astragalus membranaceus, Spatholobus suberectus, Codonopsis pilosula, Atractylodes macrocephala, Pogostemon cablin, Pueraria montana, Ophiopogon japonicus, Citrus reticulata, Cimicifuga simplex, Bupleurum chinense, Paeonia lactiflora, Poncirus trifoliata, Saposhnikovia divaricata, Heracleum hemsleyanum, Cibotium barometzou, Moghania philippinensis, Achyranthes bidentata, Coix lacryma-jobi, Nelumbo nucifera, Glycyrrhiza glabra

Recurring diarrhea after food or medicine consumption, 1 week

Unlikely, Possible

15

53, Female, Chinese

None, None

Prospan, Acetylcysteine

†Herbal formula 1: Chuan Xiong Cha Tiao San

†Herbal formula 2: Xin Yi Tang

†Herbal formula 3: Zhe Bei He Ji

†Herbal formula 4: Ming Mu Di Huang Wan

†Herbal formula 5: Yi Qi Sheng Jin Jiao Nang

Recurring diarrhea 10 min after CHM consumption, 4 days

Possible, Possible

16

23, Male, Chinese

None, None

Acetaminophen, Dequalinium lozenges

†Herbal formula 1: Sha Shen Mai Dong Tang

Additional herbs: Taraxacum officinale, Dendrobium officinale, Trichosanthis Radix, Coix lacryma-jobi, Dioscorea opposita, Rehmannia glutinosa, Cyperus rotundus, Bupleurum chinense

Occasional nausea after CHM or WMPD consumption, 2 weeks

Unlikely, Doubtful

17

53, Female, Chinese

None, None

Pembrolizumab(Intravenous infusion)

†Herbal formula 1: Yang Yin Qing Fei Ke Li

Additional herbs: Spatholobus suberectus, Liquidambar formosana, Akebia quinata, Astragalus membranaceus, Ziziphus spinosa, Polygala sibirica, Dendrobium officinale, Lilii bulbus

Recurring dull stomach pain, 1 week

Unlikely, Doubtful

18

84, Male, Chinese

None, None

Aspirin, Tamsulosin, Carbimazole

Rosa laevigata, Mantidis ootheca, Lindera aggregata, Alpinia oxyphylla, Glycyrrhiza glabra, Schisandra sinensis, Panax ginseng, Astragalus membranaceus, Cinnamomum verum, Rehmannia glutinosa, Donkey-hide Gelatin, Ophiopogon japonicus, Ziziphus jujuba, Spatholobus suberectus, Liquidambar formosana, Achyranthes bidentata, Heracleum hemsleyanum

Stomach discomfort (churning) and diarrhea, 3 days

Unlikely, Possible

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