Sato Pharmaceutical Co., Ltd. (Headquarters: Kashihara City, Nara Prefecture; President: Masahiro Sato) will launch a new 30-tablet pack of 'Chia Vitamin Tablet B' (Class 3 OTC drug), a vitamin B1-based medication, on Monday, June 15, 2026 (Reiwa 8). Previously available only in 60-tablet packs, the 30-tablet version is now added to the lineup to make the product more accessible for first-time users.

Chia Vitamin Tablet B (Class 3 OTC Drug) – 30 Tablets

Product Name: Chia Vitamin Tablet B (Class 3 OTC Drug)

Contents: 30 tablets (30-day supply)

Price: 1,518 yen including tax (1,380 yen before tax)

'Chia Vitamin Tablet B' is a vitamin B1-based formulation containing 100 mg of fursultiamine per tablet—the maximum amount allowed for over-the-counter medications※1. It helps relieve fatigue, heaviness, and eye strain with just one tablet per day※2. Recommended for those who feel tired even after sleeping, notice increasing fatigue, or suffer from severe shoulder stiffness, back pain, or eye discomfort.

The 30-tablet pack of 'Chia Vitamin Tablet B' will be promoted at drugstore counters nationwide under the slogan 'Vitamins for Smartphone Fatigue!※4'—targeting individuals concerned about eye strain and blurred vision from prolonged smartphone use. This follows a survey※3 conducted last year among trial users, in which 67.6% (575 out of 850 respondents) indicated they would want to take 'Chia Vitamin Tablet B' specifically for 'eye fatigue during smartphone use'.

The company will continue to support physical and mental well-being through product development aligned with modern lifestyles.

In-store display for Chia Vitamin Tablet B 30 tablets

※1 Maximum approved amount for OTC vitamin B1 formulations (approval standards refer to the range of pharmaceuticals defined by the Ministry of Health, Labour and Welfare to streamline approval procedures) ※2 For adults (15 years and older) ※3 Survey period: June 16 to July 16, 2025; Survey subjects: 850 male and female trial users of 'Chia Vitamin Tablet B' nationwide; Survey method: Internet survey; Survey agency: Excreate Inc. (Tentame Research) ※4 Eye strain (chronic eye fatigue, deep-eye pain, etc.)

[Product Overview]

Product Name: Chia Vitamin Tablet B (Class 3 OTC Drug)

Indications

Relief of the following symptoms: neuralgia, muscle and joint pain (shoulder, back, elbow, knee pain, shoulder stiffness, frozen shoulder, etc.), numbness in hands and feet, constipation, eye strain (chronic eye fatigue and associated blurred vision or deep-eye pain)

Beriberi

'However, if symptoms do not improve after about one month of use, please consult a physician or pharmacist.'

Vitamin B1 supplementation in the following cases: physical fatigue, pregnancy and lactation, and decreased physical strength during or after illness

Dosage and Administration

Take the following amount with water or lukewarm water.

〈Precautions regarding dosage and administration〉 Strictly follow the recommended dosage and administration.

Ingredients and Amounts per Tablet (daily adult dose)

[Information about Sato Yakuhin Online Shop] 'Chia Vitamin Tablet B' is available at the Sato Yakuhin Online Shop. The shop offers a wide range of health and beauty care products—please visit us. https://www.satoyaku.jp

[Company Overview]

Company Name: Sato Pharmaceutical Co., Ltd.

Headquarters: 9-2 Kannonjicho, Kashihara City, Nara Prefecture

President: Masahiro Sato

Established: April 30, 1951

Business: Manufacturing and sales of pharmaceuticals; planning and sales of health foods and cosmetics

Website: http://www.sato-yakuhin.co.jp/about/company

FACT BOX

  • Source: PR TIMES
  • Category: New Product