M 253 Pill — WHITE ROUND, 11mm — Acyclovir

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ImprintM / 253
ColourWHITE
ShapeROUND
Size11
StrengthACYCLOVIR 400 mg
Dosage formTablet
ManufacturerPhysicians Total Care, Inc.
NDC54868-3997
Schedule—
Availability—
IngredientsACYCLOVIR[ACYCLOVIR]

What does this imprint mean?

The imprint "M 253" 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

Acyclovir

Uses and warnings

No boxed warning. Contraindicated in patients who "develop hypersensitivity to acyclovir or valacyclovir." Key warnings: "Renal failure, in some cases resulting in death, has been observed with acyclovir therapy," particularly with inadequate hydration or in patients with underlying renal impairment; and "Thrombotic thrombocytopenic purpura/hemolytic uremic syndrome (TTP/HUS), which has resulted in death, has occurred in immunocompromised patients receiving acyclovir therapy."

Acyclovir tablets are indicated for: - Acute treatment of herpes zoster (shingles) - Treatment of initial episodes and management of recurrent episodes of genital herpes - Treatment of chickenpox (varicella). The label notes effectiveness is greatest when therapy is started early after symptom onset.

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Official references

Source: FDA Structured Product Label via NLM Pillbox archive (retired 2021); source file 2c6f7dc5-0214-4014-899a-d2700fc942af.xml