Allergy to ascorbic acid
Asthma
COPD
Allergy to opioids
Previous history of chemical dependence
Prior cardiac surgery
Known hyperoxaluria
History of renal calculi
History of allergic or hypersensitivity reaction to ascorbic acid products
Currently taking 1 g or more of ascorbic acid supplementation daily

NCT03639519_exc_T1
Drug
ascorbic acid
NCT03639519_exc_T2
Condition
Allergy
NCT03639519_exc_T3
Condition
Asthma
NCT03639519_exc_T4
Condition
COPD
NCT03639519_exc_T5
Condition
Allergy
NCT03639519_exc_T6
Drug
opioids
NCT03639519_exc_T7
Condition
chemical dependence
NCT03639519_exc_T8
Observation
history
NCT03639519_exc_T9
Temporal
Previous
NCT03639519_exc_T10
Procedure
cardiac surgery
NCT03639519_exc_T11
Temporal
Prior
NCT03639519_exc_T12
Condition
hyperoxaluria
NCT03639519_exc_T13
Condition
renal calculi
NCT03639519_exc_T14
Observation
History
NCT03639519_exc_T15
Condition
allergic
NCT03639519_exc_T16
Condition
hypersensitivity
NCT03639519_exc_T17
Drug
ascorbic acid
NCT03639519_exc_T18
Scope
allergic or hypersensitivity
NCT03639519_exc_T19
Multiplier
1 g or more
NCT03639519_exc_T20
Drug
ascorbic acid