Product Overview
T4 50mcg by Dragon Pharma is the item described here. The pack is a box of 100 tablets at 50 mcg each, and the active substance is levothyroxine, the storage thyroid hormone that your own tissues convert into the active T3. This is not a thermogenic and not a steroid: it is the same molecule that is prescribed for an underactive thyroid, at a strength that makes titration practical.
One honest complication belongs at the top of the page. The product data for this listing names the substance as Triodothyronine, which is the T3 molecule, while the pack that ships is T4 levothyroxine. Both thyroid hormones are covered below because of that, and anyone reading a table on this page should know which of the two a given row refers to.
Levothyroxine is a synthetic copy of the hormone a healthy thyroid releases in the largest quantity. On its own it is largely inactive; the liver and peripheral tissues strip an iodine atom from it to produce T3, and T3 is what actually enters the cell nucleus and sets metabolic rate. That two-step route is why T4 behaves slowly and steadily, and why its effect is judged from bloodwork rather than from how a person feels on a given morning.
Your order is 100 oral tablets at 50 mcg from Dragon Pharma, which splits neatly into half-tablet steps. Pharmacokinetics are worth stating: the half-life runs about 6 to 7 days in someone with normal thyroid function, extends to 9-10 days in hypothyroidism and shortens to 3-4 days in hyperthyroidism. Taken daily, the effective half-life is closer to 7.5 days, and a stable level takes roughly six weeks to build. Nothing in the source material describes a female sports protocol for T4, and no specific detection window exists, because thyroid hormones are not on the WADA prohibited list at all.
Mechanism of Action
Everything the drug does flows from raising the amount of circulating thyroid hormone and, through conversion, the amount of T3 available to tissues. Thyroid hormone increases the rate at which cells consume oxygen and burn substrate, which lifts basal metabolic rate, body temperature and heart rate. The rise is gradual with T4 because the conversion step smooths the curve, in contrast to the shorter, sharper profile of the T3 molecule.
T3 differs in timing rather than in kind. Its half-life is around 2.5 days, onset is faster and the effect fades faster, which is why a tablet of T3 liothyronine is dosed and tapered differently from the tablet on this page. The FDA carries a boxed warning that thyroid hormones must not be used for weight loss in people whose thyroid function is normal, and that warning exists because the hormone does not distinguish between stored fat and lean tissue when the dose runs high.
Dosage Protocol
Medical labelling starts at 25 mcg a day and titrates in 25 mcg steps every one to two weeks, with 5 mcg starts for older patients and anyone with heart disease. The sports figures below follow the same staircase but stop after a defined block.
| Starting dose | 25 mcg a day, titrated in 25 mcg steps every 1-2 weeks |
| Caution start | 5 mcg a day for older users or anyone with a cardiac history |
| Maintenance | 50-75 mcg a day in the settings described by the sources |
| Practised sports peak | 75-100 mcg a day, always with a stepped taper |
| Block length | Around 6 weeks in the protocol carried in the project data |
| Timing | Once daily in the morning, 30-60 minutes before food |
Absorption is the practical trap. Antacids, iron, calcium, soy, high-fibre food and milk all reduce how much T4 is taken up, so the tablet goes in on an empty stomach and those items wait an hour or more. Anyone who takes the tablet with breakfast milk and then wonders why the level will not move has found the answer.
Suggested Protocols
T4 is usually the quiet background element of a cutting block rather than the headline. The arrangements below follow the way the compound is placed in practice, and the first of them carries an explicit warning from the sources.
What to Expect
The timeline here is measured in weeks, not days, and that is a feature of the molecule rather than a slow batch.
Because the effect is slow and silent, self-assessment is a poor guide. People who judge a T4 block by how they feel tend to raise the dose while the level is still climbing, and the excess appears weeks later as an over-replaced thyroid.
Side Effects and Management
Almost everything on this list is a symptom of over-replacement, which means the dose is the control knob and the pulse is a free early warning.
Nobody with an untreated heart condition, an arrhythmia or a diagnosed thyroid disorder should be experimenting with this compound, and the FDA boxed warning about weight loss in people with normal thyroid function is not a technicality.
Levothyroxine is more sensitive to light and moisture than most tablets on this catalogue, so the original blister and carton are part of the packaging rather than decoration. Keep the pack dry, at room temperature and out of direct sunlight, and leave the tablets in the foil until the moment they are taken.
A bathroom shelf or a window sill will degrade this product faster than any other item in your drawer. If the tablets have become soft, discoloured or stuck to the blister, they are not worth taking, and the lot number on the carton should be kept so that any question later can be traced back to a specific batch.
Post-Cycle Therapy
There is no SERM step here, because thyroid hormones do not suppress the gonadal axis. The recovery step is a taper, and skipping it is the most common mistake with this compound.
Long blocks quiet the user's own thyroid, which is precisely why the taper exists and why a break follows. A Nolvadex or Clomid protocol does not belong here; if a suppressive steroid was part of the same block, that compound owns its own recovery plan.
The listing states the exact strength, the exact tablet count and the manufacturer, and it flags the naming discrepancy between the product data and the shipping pack rather than hiding it. Orders are dispatched discreetly, both pricing options appear on the product page before payment, and the material is sold as a research reference rather than as a prescription medicine. If T4 is not the right compound, the rest of the Dragon Pharma range covers T3, metabolic blends, orals and recovery items, and our support team will explain what a pack contains before you order.
