regex101: Python Substitution Workspace

\s*a Unicode whitespace character, repeated any number of times

\d+a Unicode decimal digit, repeated at least once

\s*a Unicode whitespace character, repeated any number of times

1st Alternativeunits?

unitthe literal text unit (case sensitive)

s?optionally matches the literal s (115₁₀ / 163₈ / 73₁₆) (case sensitive)

timethe literal text time (case sensitive)

s?optionally matches the literal s (115₁₀ / 163₈ / 73₁₆) (case sensitive)

Non-Capturing Group(?:\s+(?:a|per)\s+|\s*/\s*)

1st Alternative\s+(?:a|per)\s+

\s+a Unicode whitespace character, repeated at least once

Non-Capturing Group(?:a|per)

1st Alternativea

athe literal a (97₁₀ / 141₈ / 61₁₆) (case sensitive)

2nd Alternativeper

perthe literal text per (case sensitive)

\s+a Unicode whitespace character, repeated at least once

2nd Alternative\s*/\s*

\s*a Unicode whitespace character, repeated any number of times

/the literal / (47₁₀ / 57₈ / 2F₁₆)

\s*a Unicode whitespace character, repeated any number of times

Non-Capturing Group(?:d(?:ay)?|w(?:ee)?k|month|y(?:ea)?r?)

1st Alternatived(?:ay)?

dthe literal d (100₁₀ / 144₈ / 64₁₆) (case sensitive)

Non-Capturing Group(?:ay)?

?repeats the group contents below at most once:

aythe literal text ay (case sensitive)

2nd Alternativew(?:ee)?k

wthe literal w (119₁₀ / 167₈ / 77₁₆) (case sensitive)

Non-Capturing Group(?:ee)?

?repeats the group contents below at most once:

eethe literal text ee (case sensitive)

kthe literal k (107₁₀ / 153₈ / 6B₁₆) (case sensitive)

3rd Alternativemonth

monththe literal text month (case sensitive)

4th Alternativey(?:ea)?r?

ythe literal y (121₁₀ / 171₈ / 79₁₆) (case sensitive)

Non-Capturing Group(?:ea)?

?repeats the group contents below at most once:

eathe literal text ea (case sensitive)

r?optionally matches the literal r (114₁₀ / 162₈ / 72₁₆) (case sensitive)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Search reference

Regular Expression

\s*\d+\s*(?:units?|times?(?:\s+(?:a|per)\s+|\s*/\s*)(?:d(?:ay)?|w(?:ee)?k|month|y(?:ea)?r?))

New

inJECTable 1234 Eprex DOSE 4000 units on NONd
department 6789 DOSE 8000 units on DIALYSIS days  -  IV Interm',
inJECTable 4321 Eprex DOSE - 3 times/wk on NONdialysis day',
insulin MixTARD  30/70 - inJECTable 46 units',
insulin ISOPHANE -- InsulaTARD  Vial -  inJECTable 56 units  SC SubCutaneous',
1-alfacalcidol DOSE 1 mcg  - 3 times a week  -  IV Intermittent',
jevity liquid - FEEDS PO  Jevity  -  237 mL  -  1 times per day',
1-alfacalcidol DOSE 1 mcg  - 3 times per week  -  IV Intermittent',
1-supported DOSE 1 mcg  - 1 time/day  -  IV Intermittent',
1-testpackage DOSE 1 mcg  - 1 time a day  -  IV Intermittent

///3 times a day, 3 time/wk, 3 times per day, 3 times a month, 3 times/month

Regular Expressions 101

Regular Expression

Extraction