q2wk
Medical abbreviation · Prescription
| Stands for | Every 2 weeks |
|---|---|
| Categories | Medical |
q2wk stands for Every 2 weeks, a prescription abbreviation.
Dosing interval for many injectable biologics and long-acting medicines given once every 14 days, such as adalimumab 40 mg, evolocumab 140 mg and some long-acting antipsychotic and hormone injections.
Example: Adalimumab 40 mg subcut q2wk; next pen due Friday the 14th.
Usage notes
Also written q2w, Q2W or QOW (every other week). The word "biweekly" is ambiguous because it can mean twice a week or every two weeks, so prescriptions should say "every 2 weeks" or name the dates. Pharmacies calculate days' supply from the interval, which affects refills and insurance approval.
Related abbreviations
More prescription abbreviations
- PRN – Pro re nata (as needed)
- q.s. – Quantum sufficit (a sufficient quantity)
- q12h – Every 12 hours
- q1d – Once daily
- q24h – Every 24 hours
- q2h – Every 2 hours
- q3h – Every 3 hours
- q4-6h – Every 4 to 6 hours
- q4h – Every 4 hours
- q5min – Every 5 minutes
- q6h – Every 6 hours
- q72h – Every 72 hours
See all 77 prescription abbreviations →
This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.