D 21 Pill — WHITE ROUND, 6mm — Atenolol
| Imprint | D / 21 |
|---|---|
| Colour | WHITE |
| Shape | ROUND |
| Size | 6 |
| Strength | ATENOLOL 25 mg |
| Dosage form | Tablet |
| Manufacturer | Aurobindo Pharma Limited |
| NDC | 65862-168 |
| Schedule | — |
| Availability | Drug For Further Processing |
| Ingredients | ATENOLOL[ATENOLOL] |
What does this imprint mean?
The imprint "D 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
No boxed warning. Contraindications: "sinus bradycardia, heart block greater than first degree, cardiogenic shock, and overt cardiac failure," and known hypersensitivity. Key warnings: beta-blockers can precipitate cardiac failure because "sympathetic stimulation is necessary in supporting circulatory function"; abrupt cessation has caused "severe exacerbation of angina and occurrence of myocardial infarction and ventricular arrhythmias"; "PATIENTS WITH BRONCHOSPASTIC DISEASE SHOULD, IN GENERAL, NOT RECEIVE BETA-BLOCKERS"; may mask hypoglycemia warning signs such as tachycardia; and "atenolol can cause fetal harm when administered to a pregnant woman."
Atenolol tablets are indicated for: - Treatment of hypertension, "to lower blood pressure" and reduce the risk of fatal and nonfatal cardiovascular events such as strokes and myocardial infarctions - Long-term management of patients with angina pectoris - Management of hemodynamically stable patients with definite or suspected acute myocardial infarction, "to reduce cardiovascular mortality."
How to identify this pill
- • Check the imprint matches exactly: "D 21".
- • Confirm the colour (WHITE) and shape (ROUND).
- • Compare the size (6) against a ruler if possible.
- • When in doubt, confirm with a pharmacist before taking any medication.
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Official references
Source: FDA Structured Product Label via NLM Pillbox archive (retired 2021); source file 2f8a6d3c-fbcd-4b11-aa14-d0522fa7600e.xml