Rifampicin is active against gram-positive bacteria but less active against gram-negative bac-teria. It interferes with the synthesis of nucleic acids by inhibiting DNA dependent RNA polymerase. Resistance to rifampicin can develop rapidly. The degree of resistance varies depending on the site of mutation in the RNA polymerase.
				
					
							
																	
											Storage condition
						
															Store dry at 2-8 °C
																						Soluble in dilute acid solution
																				
																Hazard statements
	H302  Harmful if swallowed
	H315  Causes skin irritation
	H319  Causes serious eye irritation
	H335  May cause respiratory irritation
	H361  Suspected of damaging fertility or the unborn child
	H362  May cause harm to breast-fed children
	
																Precautionary statements
	P202  Do not handle until all safety precautions have been read and understood
	P261  Avoid breathing dust/fume/gas/mist/vapours/spray
	P263  Avoid contact during pregnancy/while nursing
	P280  Wear protective gloves/protective clothing/eye protection/face protection
	P305  IF IN EYES:
	P308  IF exposed or concerned:
	P313  Get medical advice/attention
	P351  Rinse continuously with water for several minutes