We are able to, and do stock Sterile Water and Sodium Chloride for irrigation. Either product is acceptable, but they are also required for your licensure.
Sterile Water/Normal Saline (2 liters) for a BLS Ambulance
You cannot use the medicane or sting swabs like are available in most catalogs.
You can carry bottles of opthalmic irrigation solution, such as Swifteze, etc.
Ammonia inhalants.. Well, since there is no list (that I've seen, even when i was an EMS captain I couldn't get lists) of what you can't carry, or a helpful list of what you can.. I'd say, just don't. They have a tendency to piss patients off, they wake up violently. Or they wake up, having suffered from some type of injury in their drunken fall, and thrash around paralyzing themselves from a spinal fracture. Up to you want you want to use on the church lady suffering from the vapors.
Gels and creams; like the WaterJel kits, etc. We were told not to carry them. We keep some on the rig for sunburn of firefighters, and some first aid cream in a box for personnel. I'll put what ever I want, on my skin, since it's not an EMS situation. Just gotta watch what you put on other people. Always irrigate well before finishing a wound off, don't slap on ointment with bits of rust or dirt in there.
http://www.dsf.health.state.pa.us/health/l...sure_manual.pdf