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 | QPharma Inc |
| NDC | 42708-044 |
| Schedule | — |
| Availability | Prescription only |
| 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
APO 101
WHITE OVAL · Paroxetine
H 104
WHITE OVAL · Metformin
114 H
WHITE OVAL · Methocarbamol
69 Z
WHITE OVAL · Metformin
IP 465
WHITE OVAL · Ibuprofen
WATSON 658
WHITE OVAL · Buspirone
L476
WHITE OVAL · Acetaminophen
F 74
WHITE OVAL · Losartan
WAT SON
WHITE OVAL · Lisinopril
HH 330
WHITE OVAL · Irbesartan
D D
WHITE OVAL · Doxycycline
R 126
WHITE OVAL · Ciprofloxacin
Other pills of Ondansetron
8 NO
YELLOW OVAL · Ondansetron
4 NO
WHITE OVAL · Ondansetron
G 4
WHITE ROUND · Ondansetron
G 4
WHITE ROUND · Ondansetron
5 E
WHITE ROUND · Ondansetron
F 91
WHITE OVAL · Ondansetron
M 344
ORANGE ROUND · Ondansetron
4 G1
WHITE OVAL · Ondansetron
130
WHITE OVAL · Ondansetron
G 4
WHITE ROUND · Ondansetron
F 92
YELLOW OVAL · Ondansetron
F 92
YELLOW OVAL · Ondansetron
Official references
Source: FDA Structured Product Label via NLM Pillbox archive (retired 2021); source file 721e928a-ba2b-4de9-83ba-11b20b2be2f0.xml