That Crewmedic 180 First Aid kit is, in my opinion, is not worth buying - for "up to 180 minutes" is not an offshore first aid kit, nor is it a liveaboard cruiser's kit.
The Hesperian Society's Where There Is No Doctor
provides practical information and advice for those people who find themselves far away from medical aid. Designed for medical practitioners in primitive areas, there is an enormous amount of practical information, helping with diagnosing illnesses, locally-obtained treatments, simple treatments, and a list of suggested medications.
The well-prepared cruiser will modify this by considering what he has on board that can be used in a medical emergency, such as sail battens for splints for a broken bone - though I think that an inflatable splint is a worthwhile device to carry. I don't have the 2010 edition, so don't know what has changed, but I have some pretty strong ideas of some of the things one ought to carry.
Ace bandages, particularly one for bandaging one's torso if there is a possibility of broken ribs.
Elastic bandages for securing sterile pads for large wounds. After tearing open the web between my thumb and index finger, I have come to really appreciate these bandages in such a humid environment.
An old-fashioned antibiotic is Gentian Violet. It works for staph infections as well as thrush (yeast infection). I think that one of the reasons it has fallen into disfavor is that it stains your skin a brilliant purple and doesn't wash off. A few benefits, though - it is water-soluble, and so one can carry a small supply of gentian violet crystals and rehydrate a small supply as needed. It isn't Iodine, which I believe (though can't find any supporting studies) is relatively ineffective in a salt-water environment, since sea water contains iodine and I would expect bacteria in the water to have developed tolerance to it.
A good oral antibiotic, recognizing that it should be replaced annually if not used.
Steri-strips for closing wounds. I challenge any non-surgically trained person to use sutures successfully on a moving, rocking boat.
Oh, I've used regular Super Glue to close wounds.
For offshore, strong pain-killer, such as morphine. If you do this, you will need to carry the prescription with you to prove you came by the stuff legally. We were never questioned about this, though.
A strong NSAID. We carried injectable Toradol (Ketorolac). Most amateurs can inject this easily. Intramuscular, best in one's thigh, it worked for my bone cancer pain better than morphine (I think because I wanted to remain conscious and alert). For the cancer it only barely controlled the pain, but the doctor said bone cancer is the worst pain there is so I had to reduce expectations or be barely conscious until surgery, etc. I just learned that there is a nasal spray to deliver Toradol. WARNING: This must be discussed with one's doctor, the maximum duration of treatment with this drug is 5 days in a row (though I received it for more than 14 days with minimal problems. But I was only 52 and extremely healthy due to our cruising lifestyle).
Acetominophen (Paracetamol) - in US the most common is Tylenol(R). I can't/won't use this, but if you suspect that you are suffering from Dengue Fever ("break-bone fever"), this is the recommended pain killer. Aspirin is not to be used for pain of Dengue Fever. Dengue Fever is more prevalent in more places than in the past, apparently now prevalent in the Caribbean as well as the South Pacific, two very popular cruising grounds.
Lots and lots of bandages of all sizes and shapes.
Emergency dental kit.
Rehydration solution. Pedialyte
is one, available in individual powder packets. More information in my Cruising Dictionary, under Dehydration
Charcoal Tablets - again, more in the Cruising Dictionary. Especially if you are traveling with children. Cannot hurt, can only help.
- told you I had strong opinions