Is DeoxIT harmful to solder/existing soldered connections?

Is DeoxIT® harmful to solder or existing soldered connections? Do I have be careful to keep the DeoxIT® away from solder when cleaning?
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There should be no problem. DeoxIT® is capable of removing oxidation from existing soldered connections.
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Using DeoxIT® will keep surfaces oxidation and corrosion free. We recommend following with isopropyl alcohol to remove contaminants from the surface prior to soldering.

When DeoxIT® is used prior to soldering or welding, it improves the integrity of the joint or weld.

An example of this is an automotive manufacturer in Japan. They use DeoxIT® prior to welding (repairs) and DeoxIT® SHIELD for clean welding rods in storage.

The result is stronger welds and clean welding rods in storage. When rods are free from oxidation and corrosion, welds are cleaner and require less current.

NOTE:
DeoxIT® GOLD (formerly ProGold)
DeoxIT® SHIELD (formerly PreservIT)
DeoxIT® FaderLube (formerly CaiLube MCL)
DeoxIT® Grease Type M260 & L260 Paste (formerly CaiLube Grease).