166 Pill — WHITE OVAL, 11mm — Metoprolol
| Imprint | 166 |
|---|---|
| Colour | WHITE |
| Shape | OVAL |
| Size | 11 |
| Strength | METOPROLOL TARTRATE 50 mg |
| Dosage form | Tablet |
| Manufacturer | Northwind Pharmaceuticals |
| NDC | 51655-535 |
| Schedule | — |
| Availability | — |
| Ingredients | METOPROLOL TARTRATE[METOPROLOL] |
What does this imprint mean?
The imprint "166" is a code stamped or printed on the tablet or capsule by the manufacturer, used to identify the drug, its strength and the maker.
Active ingredient
Metoprolol
Uses and warnings
Drug class"Metoprolol tartrate is a beta1-selective (cardioselective) adrenergic receptor blocker" that preferentially blocks beta1-receptors in cardiac tissue while showing selectivity at lower doses.UsesMetoprolol tartrate table...
Read the full drug profile →How to identify this pill
- • Check the imprint matches exactly: "166".
- • Confirm the colour (WHITE) and shape (OVAL).
- • Compare the size (11) against a ruler if possible.
- • When in doubt, confirm with a pharmacist before taking any medication.
Similar-looking pills
R 127
WHITE OVAL · Ciprofloxacin
N 10
WHITE OVAL · Benztropine
WATSON 385
WHITE OVAL · Hydrocodone
AMB 10
WHITE OVAL · Zolpidem
315
WHITE OVAL · Simvastatin
G 13
WHITE OVAL · Gabapentin
D 25
WHITE OVAL · Gabapentin
TYLENOL 500
WHITE OVAL · Acetaminophen
N947 800
WHITE OVAL · Acyclovir
M B7
WHITE OVAL · Buspirone
I 10
WHITE OVAL · Ibuprofen
GGD8
WHITE OVAL · Azithromycin
Other pills of Metoprolol
A ms
WHITE ROUND · Metoprolol
RE 79
WHITE ROUND · Metoprolol
M 1
WHITE OVAL · Metoprolol
C 73
WHITE ROUND · Metoprolol
M 47
BLUE ROUND · Metoprolol
W 735
WHITE ROUND · Metoprolol
477
WHITE ROUND · Metoprolol
831
WHITE ROUND · Metoprolol
A my
WHITE OVAL · Metoprolol
M 424
ORANGE ROUND · Metoprolol
M 1
WHITE OVAL · Metoprolol
N 200
WHITE OVAL · Metoprolol
Official references
Source: FDA Structured Product Label via NLM Pillbox archive (retired 2021); source file fb98ff8e-3de0-4300-b6c7-5401d5856239.xml