Homeopathic Product of USA. Opium 30C is useful in drowsiness, hallucinations. Any Homeopathic product has many uses as mentioned in the Homeopathic Materia Medica and known to Homeopaths. Paramesh Banerji Life Sciences carries forward a 99 year heritage comprising 3 generations of the P. Banerji’s of India covering Homeopathic Clinics, Research and Medicine Manufacturing. Our medicines are being used by patients in over 85 countries around the world, trusted and recommended by largest Homeopathic service providers.