Pill identification — FDA label match

668 Pill — Acyclovir 200 mg (Blue, Capsule)

A blue capsule with the imprint 668 matches the FDA label for Acyclovir 200 mg. Compare every detail below with your pill, and confirm with a pharmacist before relying on it.

Imprint	668
Generic name	Acyclovir
Active ingredient(s)	Acyclovir 200 mg
Strength	200 mg
Dosage form	Capsule
Colour	Blue
Shape	Capsule
Size	19 mm
Score	No score
Labeler	Remedyrepack Inc.
NDC examples	70518-3436-0, 70518-3436-1, 70518-3436-2

What this medicine is

According to its FDA-approved label, Acyclovir is described as follows (reference information only — not advice about whether it is right for anyone):

Herpes Zoster Infections: Acyclovir capsules are indicated for the acute treatment of herpes zoster (shingles). Genital Herpes: Acyclovir capsules are indicated for the treatment of initial episodes and the management of recurrent episodes of genital herpes. Chickenpox: Acyclovir capsules are...

Equivalent pills — same medicine, different imprint

The pills below contain the same active ingredient at the same strength (Acyclovir 200 mg). Different makers stamp their own codes, so equivalent pills often look completely different. This is factual label information — it is not a suggestion to substitute one product for another; only a pharmacist or prescriber can advise on that.

N 940 200 Acyclovir 200 mg — Blue · capsule · 19 mmFull page in a later wave

200 CTI 111 Acyclovir 200 mg — Blue · capsule · 10 mmFull page in a later wave

APO 042 Acyclovir 200 mg — White · capsule · 18 mmFull page in a later wave

HP 229 Acyclovir 200 mg — Blue · capsule · 19 mmFull page in a later wave

CP115 200 Acyclovir 200 mg — Blue · capsule · 19 mmFull page in a later wave

PRESTIUM ZOVIRAX 200 Acyclovir 200 mg — Blue · capsule · 20 mmFull page in a later wave

QP146 Acyclovir 200 mg — Blue · oval · 10 mmFull page in a later wave

WELLCOME ZOVIRAX 200 Acyclovir 200 mg — Blue · capsule · 20 mmFull page in a later wave

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Frequently asked questions

What pill has the imprint 668?

A blue capsule with the imprint 668 matches the FDA label for Acyclovir 200 mg. Always compare the colour, shape and size as well — short imprints are shared by different medicines — and confirm with a pharmacist.

What does the 668 pill look like?

On its FDA label it is described as a blue capsule, 19 mm, with a score recorded as: no score.

How can I be sure this identification is right?

Check every characteristic — imprint (both sides), colour, shape, size and score — against the pill in your hand. If all of them agree, the pill matches the FDA label shown here, but that is still not a guarantee: counterfeit pills copy real imprints. A pharmacist can confirm the identification in person, and you should never take a pill you are not certain about.

Browse: all pills with imprint 668 · Acyclovir — all forms & strengths · Blue pills · Capsule pills

Source: FDA label data via DailyMed/openFDA · Label set ID 0990b625-5dfe-4810-b5b4-ac5948599e79 · Record extracted from the openFDA bulk export of October 29, 2026. Spotted an error? Report it — include the imprint and what looks wrong.