Letrozole Tablets

Description

Letrozole tablets, 2.5 mg per film-coated tablet, in 30 count and 90 count bottles. This is the multi-source generic presentation of a nonsteroidal competitive aromatase inhibitor, approved and marketed in the United States and not a controlled substance. Research use only, not for human consumption, adults 21 and over, with purchase restrictions by state.

Container and content

2.5 mg is the only approved strength for this compound, so the count is the only thing that changes between the two options, along with the milligram total and the figure printed under each price.

Look for letrozole tablets in the ancillary shelf, one shelf down from the anabolics index.

Chemistry of letrozole tablets

4,4′-(1H-1,2,4-triazol-1-ylmethylene)dibenzonitrile, molecular mass near 285.3. Two nitrile groups, one triazole, no steroid nucleus. The molecule is small, achiral and well behaved on a reversed-phase column, so purity figures for letrozole tablets are reproducible and identity by mass spectrometry is unambiguous.

What the published in-vitro literature reports is reversible competitive inhibition at aromatase. We do not extend that into a claim about this listing and we do not rank it against the other compounds on the shelf, because potency comparisons are exactly the content this category does not carry.

Milligram totals and the derived figure

Thirty tablets at 2.5 mg is 75 mg, ninety is 225 mg. Each option is priced on its own and carries its own per-milligram number underneath, so the saving on the larger bottle is something you can verify rather than something we assert.

Low-strength units always price poorly per milligram. Why price per milligram beats the price on the bottle and check the lab before you check the numbers cover the two habits worth keeping when comparing listings.

Status in the United States

Approved, marketed, generically available, not a controlled substance. That is the position for letrozole tablets and for the rest of the ancillary group, and it differs materially from the compounds in this catalogue whose approvals were withdrawn or never granted. Records are published through the FDA’s drug approvals and databases, with the federal schedules at the DEA.

The assay, and the lots that fail it

Every lot of letrozole tablets is assayed before it is listed. HPLC returns purity as a percentage of total peak area, mass spectrometry confirms identity against the expected mass, and residual solvents are reported in parts per million. A lot assaying below its stated milligram content is withdrawn from sale, and its certificate stays on the results page with the rest of them, because a results page carrying nothing but passes tells you nothing about the ones that did not pass. The figure published is the figure the assay returned, not a rounded version of it.

Why we publish the batch that failed is the longer version of that argument, and our certificate guide covers the fields.

Container, label and lot

The label on letrozole tablets carries the compound name, the content per unit, the container count or fill volume, the lot number and the date the lot was assayed. Those five things are what make a reference material traceable, and a container missing any of them is a container of unknown provenance whatever is written on the invoice. Storage conditions for this item are printed on the listing. Sealed containers are shipped sealed, and we do not repackage into unlabelled vials or bottles on request.

Declined on request

No quantities, no protocols, no sequencing, no potency rankings, no physiological description of letrozole tablets. If you ask us by email, the answer is the same as the answer on the page, which is that we do not supply it.

Keeping this listing to specifications is what makes the specifications worth anything. Research use only is not a legal strategy, and the FDA has said so in writing explains how the agency reads pages that go further, and the FDA’s drug information section holds the source documents.

Research use only. Not for human consumption. Purchase is restricted to adults 21 and over and to jurisdictions where this compound is lawful, the listing states where it cannot ship, and checkout enforces it. Nothing here is a drug, a dietary supplement or a food. Certificates for current and past lots, including the ones that failed, are on the lab results page.