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Introduction - Uppsala Monitoring Centre

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Table 11. Knowledge of adverse reactions to the marker drugs<br />

By choosing the most common ADRs one automatically rules out most type B reactions and some of<br />

the categories are not relevant. In type ‘A’ reactions confidence limits for incidences would only be<br />

relevant at a standard dosage. Although under ‘factors’ only dose is mentioned there may also be<br />

idiosyncratic predisposition, e.g. salivation with mercury.<br />

Manifestation Vomiting Madness Salivation or<br />

ptyalism<br />

Nausea Tinnitus VIII cranial<br />

nerve.<br />

Giddiness<br />

usually<br />

appearing in<br />

the 4/5 th week.<br />

Deafness<br />

(rare)<br />

Severity +++ Variable Variable Vomiting + +++<br />

Seriousness Potentially +++ No + No +++<br />

Incidence<br />

Dose<br />

related<br />

Dose<br />

related<br />

Dose<br />

related<br />

Dose<br />

related<br />

Dose<br />

related<br />

65% - 68%<br />

Absolute<br />

Dose<br />

related<br />

Dose<br />

related<br />

Dose<br />

related<br />

Dose<br />

related<br />

9 of 58 36 of 55<br />

Relative to<br />

competitors<br />

More than<br />

most other<br />

emetics<br />

? Not with<br />

other<br />

syphilis<br />

treatments<br />

Affects 2/3<br />

of patients<br />

Occurs with<br />

all<br />

salicylates<br />

CIs ? ? ? ? ? ?<br />

More than<br />

dihydrostreptomycin<br />

Mechanism Type ‘A’ Type ‘A’ Type ‘A’ Type ‘A’ Type ‘A’ Type ‘A’<br />

Causality Certain Certain Certain Certain Certain Certain<br />

Factors<br />

Dose (see<br />

78, 1619,<br />

1652 &<br />

1694)<br />

Treatment Stop Stop Reduce<br />

dose<br />

Dose Dose, age Dose Dose Renal function,<br />

age, weight<br />

(see above)<br />

Anti-emetic<br />

or reduce<br />

dose<br />

Reduce<br />

dose<br />

Reduce dose<br />

Effective Yes Yes Yes Yes Yes Usually<br />

Reversible Yes Yes Yes Yes Yes Not always<br />

Sequelae Dehydration ? Nil Dehydration Nil Possible

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