Methycobal is an injectable solution containing 500 micrograms of mecobalamin (Vitamin B12) per ampule. Manufactured by Eisai Co., Ltd. in Japan, this prescription medication comes in a pack of 10 ampules of 1ml each, designed for intramuscular or intravenous administration. Mecobalamin is a form of Vitamin B12 that plays an essential role in treating vitamin B12 deficiency, pernicious anemia, and peripheral neuropathy. The solution for injection format allows for direct delivery into the bloodstream when oral supplementation may not be sufficient or appropriate. Each ampule is designed with a 'rip to open' mechanism for safe and convenient administration by healthcare professionals.