F 91 Pill — WHITE OVAL, 6mm — Ondansetron
| Imprint | F / 91 |
|---|---|
| Colour | WHITE |
| Shape | OVAL |
| Size | 6 |
| Strength | ONDANSETRON HYDROCHLORIDE 4 mg |
| Dosage form | Tablet, Film Coated |
| Manufacturer | KAISER FOUNDATION HOSPITALS |
| NDC | 0179-0247 |
| Schedule | — |
| Availability | — |
| Ingredients | ONDANSETRON HYDROCHLORIDE[ONDANSETRON] |
What does this imprint mean?
The imprint "F 91" 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
Ondansetron
Uses and warnings
Key safety concerns include: - Hypersensitivity reactions: "Hypersensitivity reactions, including anaphylaxis and bronchospasm" may occur; discontinue if suspected - QT prolongation: Risk of serious cardiac arrhythmias; avoid in congenital long QT syndrome; ECG monitoring recommended for at-risk patients - Serotonin syndrome: Risk when combined with serotonergic drugs (SSRIs, SNRIs, tramadol, others); monitor for mental status changes and neuromuscular symptoms - Bowel obstruction masking: May mask progressive ileus and gastric distension post-surgery
Ondansetron tablets are indicated for preventing nausea and vomiting associated with: - Highly emetogenic cancer chemotherapy (including cisplatin ≥50 mg/m²) - Moderately emetogenic cancer chemotherapy courses - Radiotherapy involving total body irradiation or abdominal radiation - Postoperative nausea and/or vomiting
How to identify this pill
- • Check the imprint matches exactly: "F 91".
- • Confirm the colour (WHITE) and shape (OVAL).
- • Compare the size (6) against a ruler if possible.
- • When in doubt, confirm with a pharmacist before taking any medication.
Similar-looking pills
851
WHITE OVAL · Metronidazole
E 02
WHITE OVAL · Carvedilol
159
WHITE OVAL · Fenofibrate
1067
WHITE OVAL · Valsartan
LL725
WHITE OVAL · Hydrocodone
A511
WHITE OVAL · Divalproex
500
WHITE OVAL · Levetiracetam
FLO
WHITE OVAL · Fenofibrate
107
WHITE OVAL · Oxycodone
M
WHITE OVAL · Metoprolol
0 5
WHITE OVAL · Levothyroxine
NT 151
WHITE OVAL · Gabapentin
Other pills of Ondansetron
M 374
ORANGE ROUND · Ondansetron
131
YELLOW OVAL · Ondansetron
93 233
WHITE ROUND · Ondansetron
5 E
WHITE ROUND · Ondansetron
24 G1
PINK OVAL · Ondansetron
R 154
YELLOW ROUND · Ondansetron
240
WHITE OVAL · Ondansetron
4 NO
WHITE OVAL · Ondansetron
4 NO
WHITE OVAL · Ondansetron
5 E
WHITE ROUND · Ondansetron
8 NO
YELLOW OVAL · Ondansetron
8 NO
YELLOW OVAL · Ondansetron
Official references
Source: FDA Structured Product Label via NLM Pillbox archive (retired 2021); source file 7b0cfc48-4ec8-3d28-e053-2991aa0af607.xml