Regional » Airport Codes. Rate it: INH: Inhaler(s) Medical » Physiology. Get the top INH abbreviation related to Medical. Internet » Chat. In addition, when these abbreviations are unclear, extra time must be spent by pharmacists or other healthcare providers trying to clarify their meanings, which can delay much-needed treatments. International » Spanish. Rate it: INH: International Network Horsens Medical INH abbreviation meaning defined here. Rate it: INH: Instituto Nacional de Hidrocarburos. Pharmacy INH abbreviation meaning defined here. What does INH stand for in Medical? Rate it: INH: Inhambane, Mozambique. Internet » Chat. INH: Isoniazid. Pharmacy abbreviations and acronyms are an effective means through which medical … INH: [ i″so-ni´ah-zid ] an antibacterial compound used in treatment of tuberculosis. Historically, poor penmanship and lack of standardization was the root cause of many of the prescription errors. Top INH abbreviation related to Pharmacy: Inhalation Rate it: INH: I Need Help. Some of the typed or computer-generated abbreviations, prescription symbols, and dose designations can still be confusing and lead to mistakes in drug dosing or timing. Medical » Physiology-- and more... Rate it: INH: Insert Name Here. What does INH stand for in Pharmacy?