RE 21 Pill — WHITE ROUND, 9mm — Atenolol
| Imprint | RE / 21 |
|---|---|
| Colour | WHITE |
| Shape | ROUND |
| Size | 9 |
| Strength | ATENOLOL 100 mg |
| Dosage form | Tablet |
| Manufacturer | Unit Dose Services |
| NDC | 50436-3331 |
| Schedule | — |
| Availability | — |
| Ingredients | ATENOLOL[ATENOLOL] |
What does this imprint mean?
The imprint "RE 21" 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
Atenolol
Uses and warnings
Drug class"Beta1-selective (cardioselective) adrenoreceptor blocking agent" - a beta-blocker that blocks the "positive chronotropic and inotropic effects of catecholamines," slowing heart rate and reducing the oxygen req...
Read the full drug profile →How to identify this pill
- • Check the imprint matches exactly: "RE 21".
- • Confirm the colour (WHITE) and shape (ROUND).
- • Compare the size (9) against a ruler if possible.
- • When in doubt, confirm with a pharmacist before taking any medication.
Similar-looking pills
K6
WHITE ROUND · Clonazepam
WP 5901
WHITE ROUND · Carisoprodol
PLIVA 333
WHITE ROUND · Metronidazole
A23
WHITE ROUND · Amlodipine
Tenormin 101
WHITE ROUND · Atenolol
e5 757
WHITE ROUND · Phenobarbital
U S
WHITE ROUND · Lorazepam
COR 143
WHITE ROUND · Benztropine
O 12
WHITE ROUND · Acetaminophen
541 C
WHITE ROUND · Cetirizine
Par 021
WHITE ROUND · Isosorbide Dinitrate
060
WHITE ROUND · Clonidine
Other pills of Atenolol
Tenormin 101
WHITE ROUND · Atenolol
753 TEVA
WHITE ROUND · Atenolol
GG 264
WHITE ROUND · Atenolol
DAN 100
WHITE ROUND · Atenolol
Tenormin 105
WHITE ROUND · Atenolol
G/25
WHITE ROUND · Atenolol
RE20
WHITE ROUND · Atenolol
N014
WHITE ROUND · Atenolol
264
WHITE ROUND · Atenolol
RE 19
WHITE ROUND · Atenolol
GG263
WHITE ROUND · Atenolol
MP 153
WHITE ROUND · Atenolol
Official references
Source: FDA Structured Product Label via NLM Pillbox archive (retired 2021); source file 7cc04f91-7f71-4df6-b73d-092bf765dcee.xml