Symptoms of postpartum depression are similar to what happens normally following childbirth. They include difficulty sleeping, appetite changes, excessive fatigue, decreased libido, and frequent mood changes.
If your horse needs a topical medication along with a pain reliever, your veterinarian may have you apply a dimethyl sulfoxide, or DMSO, solution. DMSO is quickly absorbed through the skin and is especially good at relieving swelling, as it pulls moisture from tissues.
It comes in much larger doses 10, 20, 40, 80mg. Methadone is another extremely strong pain reliever though it is often used to treat drug addicted patients. Inter-venous pain medication is generally stronger then oral pain medication. Morphine and Dilaudid are the two major IV pain drugs (Dilaudid being 7 times stronger then morphine). The strongest pain medication per milligram is fentnyl. This drug is so powerful it is given in micrograms not milligrams. It is often used to help induce anesthesia and for pain relief immediately after a surgery.