Russian teens can’t stop talking about this 'miracle' weight loss pill. But why are doctors worried?

Branded as Molecule Plus, the capsule has gone viral on TikTok, but doctors are warning that its popularity masks serious health risks.

On Russian TikTok feeds, videos tagged with #MoleculePlus feature young users flaunting blue boxes and sharing their “weight-loss journeys.”

Teenagers and young adults claim dramatic transformations after taking the pills, often describing it as an easy fix.

However, some users say the side effects tell a different story. Maria, 22, told the BBC she began taking two pills a day after seeing them online. “Within two weeks, my mouth was dry, I couldn’t sleep, and my anxiety went through the roof,” she said. Other users have reported tremors, dilated pupils, and loss of appetite.

What’s inside ‘Molecule’?

Despite its sleek packaging and claims of “natural ingredients” such as fennel seed and dandelion root, tests by the Russian newspaper Izvestiya found that Molecule contained sibutramine- a banned weight-loss drug once used as an appetite suppressant.

Sibutramine was developed in the 1980s as an antidepressant and later prescribed for obesity, but studies linked it to increased risks of heart attacks, strokes, and high blood pressure. It was banned in the US, UK, EU, and China more than a decade ago.

In Russia, sibutramine is still legal but only under prescription and medical supervision. Selling or distributing it without one is a criminal offence.

Yet, the drug continues to circulate through the black market, often repackaged under new names- such as Atom, Molecule’s apparent successor.

Doctors sound alarm

Endocrinologist Ksenia Solovieva cautioned that users of Molecule have no control over what they are consuming, NDTV reported.

“The amount of active ingredient remains unknown,” she said. “Self-medicating with such pills can lead to unpredictable and dangerous reactions.”

Medical experts say the biggest risk lies in counterfeit or unregulated products that mimic prescription medications without safety testing or dosage control.

The rise of Molecule comes amid global fascination with Ozempic and Wegovy, two clinically approved weight-loss drugs. But experts stress that the similarities end at the marketing pitch.

While Ozempic and other GLP-1 agonists work by mimicking a hormone that regulates appetite and blood sugar, and are FDA-approved and clinically tested, Molecule is unapproved, unregulated, and chemically unrelated.

“Molecule promises the same results without any of the science or safety,” one health official said.

Cheap, accessible, and addictive

Despite the warnings, sales continue to surge. A 20-day pack costs about £6–7 ($8–9), far cheaper than Ozempic, which can range from £40 to £160 ($50–210) per month in Russia.

For students and teens, the affordability and hype make Molecule appealing. Influencers flaunting “instant results” feed the illusion that the pills are harmless. Even as reports of side effects mount, social media engagement keeps the trend alive.

“People want fast results,” said Solovieva. “But these shortcuts come with long-term risks.”

The Molecule craze highlights a growing online market for unregulated health supplements, a space where social media hype often outpaces science.

As Russian authorities struggle to curb illegal sales, experts are urging users to seek professional medical advice before turning to “quick-fix” pills promising effortless weight loss.