Methisoprinol

Methisoprinol, also known by its brand names like Imunovir and Virazole, is an immunomodulatory drug with antiviral properties. It is a synthetic compound formed by linking inosine and N,N-dimethylamino-2-propanol with a salt linkage. It is believed to work by enhancing the body's immune response to viral infections and by directly inhibiting viral replication.

The drug is primarily used in some countries to treat a variety of viral infections, including those caused by herpes simplex virus, influenza, and measles. It is also sometimes prescribed for conditions like subacute sclerosing panencephalitis, a rare complication of measles. Methisoprinol is generally administered orally.

The mechanism of action is thought to involve multiple pathways. It may stimulate lymphocyte proliferation and T-cell activity, thereby boosting the cellular immune response. Additionally, it might interfere with viral RNA and DNA synthesis.

While generally considered safe, side effects can occur and may include gastrointestinal disturbances, headache, dizziness, and skin rash. It is important to consult with a healthcare professional for proper diagnosis and treatment. Methisoprinol is not approved for use in all countries, and its efficacy and safety profile continue to be subjects of research.