Fenbendazole 222mg vs 444mg: Which Strength Should You Choose?

Introduction: What the Numbers Mean

When you buy fenbendazole capsules, the first choice you'll face is the strength: 222mg or 444mg. The number is simply the amount of fenbendazole contained in each capsule. It is the same compound in both — the difference is how much is packed into a single capsule.

That makes this one of the easier decisions in fenbendazole sourcing, but there are still meaningful differences in cost, convenience, and flexibility worth understanding before you order.

Fenbendazole is sold for research and educational purposes and is not approved for human use. Nothing here is medical or dosing advice. See our full disclaimer.

Quick Answer

• Choose 222mg if you want the most widely referenced standard format and maximum flexibility — you can always take two for a 444mg equivalent.
• Choose 444mg if you'd rather swallow fewer capsules and want a slightly lower cost per milligram.

One 444mg capsule equals two 222mg capsules. Everything else is a matter of convenience and price.

222mg vs 444mg: The Real Difference

The relationship is exactly 2:1. A 444mg capsule contains double the fenbendazole of a 222mg capsule. This means:

Because 222mg is the format most often referenced in community discussions, it has become the default unit people think in. The 444mg simply lets you reach the same amounts with half the capsule count.

Cost Per Dose Compared

444mg capsules are usually marginally cheaper per milligram than 222mg, because you're paying for fewer capsules and less packaging to get the same total compound. For example:

The savings from 444mg are real but modest. If cost is your top priority, note that bulk powder beats both capsule strengths — at roughly $0.17 per 222mg equivalent.

Convenience and Flexibility

This is the practical heart of the decision:

• 444mg is more convenient. Fewer capsules to take and track, and one bottle lasts longer at the same total amount.
• 222mg is more flexible. Smaller increments mean you can fine-tune amounts more precisely, and you can always combine two 222mg capsules to match a 444mg dose. You cannot easily split a 444mg capsule in half accurately.

If you value simplicity, 444mg wins. If you value control and the ability to adjust, 222mg wins.

Where the 500mg Fits In

One supplier — FenbenLab — also offers an exclusive 500mg capsule. It follows the same logic: a higher per-capsule amount for those who specifically want it. It is not a "stronger" or different compound, just a larger single-capsule quantity. For a full breakdown of formats and cycling references, see the dosage guide.

How to Choose

Both strengths are available from

• FenbenLab — 222mg, 444mg, and exclusive 500mg; Bruker FT-IR + HPLC verified; worldwide shipping
• BP Life — 222mg and 444mg capsules plus bulk powder; best per-mg value; HPLC verified
• Sanare Lab — 222mg and 444mg; US GMP certified, FDA-registered facility

Why Purity Matters More Than Strength

Here's the point most buyers overlook: the label strength only means something if the compound is actually pure. A "444mg" capsule at 80% purity delivers only about 355mg of active fenbendazole — so the strength on the label is meaningless without verification.

Before choosing any strength, confirm the supplier provides a batch-specific Certificate of Analysis, a named test method (HPLC, FT-IR), and a stated purity percentage. See our buyer's guide for how to verify this.

Frequently Asked Questions

Conclusion: A Simple 2:1 Decision

The fenbendazole 222mg vs 444mg choice is refreshingly simple: it's the same compound, and 444mg is just double the per-capsule amount. Pick 222mg for the flexible community standard, or 444mg for fewer capsules and a small per-milligram saving. If price is everything, bulk powder undercuts both.

Whichever strength you choose, the number on the label only matters if the compound is verified pure — so always buy from a supplier with batch-specific Certificates of Analysis.

Also see: Powder vs Capsules · Dosage Guide · Where to Buy