M122 Pill — WHITE OVAL, 18mm — Valacyclovir
| Imprint | M122 |
|---|---|
| Colour | WHITE |
| Shape | OVAL |
| Size | 18 |
| Strength | VALACYCLOVIR HYDROCHLORIDE 500 mg |
| Dosage form | Tablet, Film Coated |
| Manufacturer | Mylan Pharmaceuticals Inc. |
| NDC | 0378-4275 |
| Schedule | — |
| Availability | Prescription only |
| Ingredients | VALACYCLOVIR HYDROCHLORIDE[ACYCLOVIR] |
What does this imprint mean?
The imprint "M122" 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
Valacyclovir
Uses and warnings
No boxed warning. Key warnings include thrombotic thrombocytopenic purpura/hemolytic uremic syndrome (TTP/HUS), which "has occurred in patients with advanced HIV-1 disease" and in bone marrow/renal transplant recipients given high doses; acute renal failure, particularly in elderly or dehydrated patients or those with underlying renal disease; CNS effects including "agitation, hallucinations, confusion, and encephalopathy," more common in the elderly; and postmarketing reports of severe cutaneous reactions including Stevens-Johnson syndrome and toxic epidermal necrolysis. Contraindicated in patients with hypersensitivity to valacyclovir, acyclovir, or any formulation component.
In adults: treatment of cold sores (herpes labialis), genital herpes (initial episode, recurrent episodes, and chronic suppressive therapy, including reduction of transmission), and herpes zoster (shingles). In pediatric patients: cold sores in those 12 years and older, and chickenpox (varicella) in immunocompetent children 2 to less than 18 years of age.
How to identify this pill
- • Check the imprint matches exactly: "M122".
- • Confirm the colour (WHITE) and shape (OVAL).
- • Compare the size (18) 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 40021954-474c-45ec-92cb-d18e356e11b8.xml