1. Blood Loss (Quick Clot? Pads)
You can't go wrong having a packet or two of QuikClot. Just learn how it's used and its limitations before you have to use it.
I'd also recommend a couple of
these as well. Buy an extra one so you can tear it open right away to familiarize yourself with its design and usage.
The bare minimum you should have, though, especially if space/weight and cost are concerns, is a couple of large sterile gauze pads. 4x4s should do it; if you need them for a smaller wound you can cut them down, but you can't make the smaller pads any bigger. Once you put the sterile barrier of a clean new gauze pad over the wound, you can add whatever is available (towels, your shirt, etc.) on top of it to soak up the excess blood without too much worry of introducing more germs into the wound.
5. Analgesics (Tylenol, Asprin)
Try Percogesic. It's somewhat hard to find, but it works quite well. It can be found at Rite Aid and Medicine Shoppes here in the states. Other pharmacies gave me blank stares. I wasn't even able to find it quickly on the net. It's kind of expensive, though, about $8 for 50 pills at both places. Medicine Shoppe sells their own brand of it for only a few bucks, but I haven't tried it yet. I intend to once my supply runs out.
Aspirin is good to have in case of heart attacks.
I've never been impressed with tylenol. I use Aleve or Percogesic.
6. Allergy Relief (Hmm undecided)
Benadryl antihistamine comes highly recommended. Or try the generic/off-brands (it's diphenhydramine, quite a few different off-brands of it are available. I have not personally done any testing on this, as I don't really have allergies.)
7. Tourniquet (Any Recommendations?)
In a thread I started on tourniquets a couple weeks ago, alco141 made the excellent suggestion of using a blood pressure cuff as a tourniquet. I pass this on because that's exactly what a blood pressure cuff is. It's wide enough to not cause undue tissue damage beneath the cuff, and it can be applied and inflated with one hand (an excellent feature if your other hand happens to be mangled or severed or something).
8. Wound suture (Any Recommendations?)
You don't need sutures. I wouldn't even waste the kit space. Get Steristrips or butterfly closures, and if you have money to burn, get some dermabond (I'm told that J&J liquid bandage is basically the same as dermabond. I think I've seen it at Wal-Mart, but I didn't read the package at the time. I will have to look into this. Superglue will do in a pinch, but it burns and it's not as safe). That's all you really need, and they're much easier and safer to use if you're not highly trained in proper suture application. You can even use medical tape or even strips of duct tape to approximate the edges of a wound. I'd lay a thin strip of gauze over the wound itself if you're using something that's adhesive all the way across so you can remove it if you have to without automatically ripping the wound edges open again. Try to keep the area clean and just leave it alone once the strips are in place, though.