Oxymetholone (17beta-hydroxy-2-[hydroxymethylene]-17-methyl-5alpha-androstan-3-one) is a 17alpha-alkylated anabolic-androgenic steroid and a synthetic derivative of testosterone. It has been approved by the US Food and Drug Administration for the treatment of anemias caused by deficient red cell production. Acquired aplastic anemia, congenital aplastic anemia, myelofibrosis and the hypoplastic anemias due to the administration of myelotoxic drugs often respond. Drug interactions exist with cimetidine, paroxetine, and haloperidol, but are not expected with indinavir, ritonavir, clarithromycin, or itraconazole.

Sulfamethoxypyridazine is a sulfonamide antibacterial with a broad spector of activity. It acts by inhibiting the enzyme dihydropteroate synthetase (DHPS), required for the synthesis of nucleic acids and microbial cells.

P-32 is a radioactive isotope of phosphorus with a half-life of 14.29 days. Radioactive decay of P-32 produces beta-particles (electrons) which are able to penetrate tissue at a range of 3-8 mm. Phosphate ion P-32 has many applications in medicine and biology. P32 sodium phosphate was approved by the FDA for the treatment of polycythemia vera, chronic myelocytic leukemia, and chronic lymphocytic leukemia. P32-phosphate may also be used in the palliative treatment of selected patients with multiple areas of skeletal metastases. As metabolic uptake of phosphorus is selectively increased in malignant tissues, P-32 was also used for cancer diagnostics.

Propoxyphene is a centrally acting opiate analgesic. Propoxyphene is an odorless, freely soluble in water, white crystalline powder with a bitter taste. In vitro studies demonstrated propoxyphene and the metabolite norpropoxyphene inhibit sodium channels (local anesthetic effect) with norpropoxyphene being approximately 2 fold more potent than propoxyphene and propoxyphene approximately 10 fold more potent than lidocaine. Propoxyphene and norpropoxyphene inhibit the voltage-gated potassium current carried by cardiac rapidly activating delayed rectifier (hERG) channels with approximately equal potency. It is unclear if the effects on ion channels occur within therapeutic dose range. Propoxyphene is indicated for the relief of mild to moderate pain.

Docusate, also known as docusate salts or dioctyl sulfosuccinate, prevents/relieves dry hard stool and thus is used to treat constipation. Results usually occurs 1 to 3 days after the first dose. In North America, docusate and a stimulant laxative such as sennosides are commonly used in bowel treatment protocols associated with institutionalized elderly and oncology treatments. A paucity of evidence is available to support the use of the stool softener docusate yet it continues to be prescribed in everyday clinical practice for the aforementioned populations. While the actual cost of docusate is low, additional costs associated with its administration (i.e. nursing time) and its widespread use can be significant. Docusate is absorbed into the bloodstream and excreted via the gallbladder after undergoing extensive metabolism. The effect of docusate may not necessarily be all due to its surfactant properties. Perfusion studies suggest that docusate inhibits fluid absorption or stimulates secretion in the portion of the small intestine known as the jejunum

Pipenzolate bromide (JB-323), an anticholinergic agent, which binds to muscarinic acetylcholine receptors as an antagonist. Pipenzolate bromide was studied as an antispasmodic agent, and to treat peptic ulcer.

Pipradrol (Meratran) is a psychoactive agent and a central nervous system stimulant useful in the field of psychiatry. In vitro study has shown that pipradrol inhibits the reuptake of and stimulates the release of dopamine and norepinephrine. In these pharmacodynamic actions it is less potent than d-amphetamine. It was shown that pipradrol conditioned place preference (CPP) was blocked by selective D1 dopamine antagonist SCH23390 suggesting that a rewarding effect of pipradrol establishment of a CPP may involve activation of D1 dopamine receptors. Pipradrol was initially used as an adjunct in the dietary management of obesity as well as for the treatment of dementia. There have been a number of reports on the properties of pipradrol showing its favorable effects in the treatment of depression and fatigue status as well as a variety of other conditions including narcolepsy, spasmodic torticollis, schizophrenia and in geriatric practice. Pipradrol has a definite cerebral stimulating effect without affecting the blood pressure or respiration and has been used to counteract post-anasthetic and chlorpromazine depression in man. Structurally related to -phenylmethylamphetamine, a potent stimulant with a long half-life, pipradrol differs from amphetamine in that its action is more intense at higher centres, it lacks pressor activity, there is no post-excitement depression, and it does not depress the desire for food as occurs with amphetamine. The drug however is enhancing the existing pathologic behavior such as exacerbating pre-existing anxiety and is considered the drug of abuse. Meratran has certain indications and contraindications. Indications are schizophrenics without delusions having restriction of interest and activity and with depressant features, psycho-motor retardation and/or blocking of communication, long-term hospitalized schizophrenics with severe deterioration while contraindications are patients with delusions, anxiety, disturbed patients with cerebral arteriosclerosis. Pipradrol was made illegal in many countries in 1970s due to its abuse potential. It is classified under the Misuse of Drugs Act as a Class C substance. The combination of pipradrol with multivitamins and minerals marketed as Alertonic Elixir is used as adjunctive therapy in combating fatigue resulting from emotional or nutritional causes.

Digoxin is a cardiac glycoside derived from the purple foxglove flower. In 1785, the English chemist, botanist, and physician Sir William Withering published his findings that Digitalis purpurea could be used to treat cardiac dropsy (congestive heart failure; CHF). Digoxin has been in use for many years, but was not approved by the FDA for treatment of heart failure (HF) until the late 1990s. Another FDA indication for digoxin is atrial fibrillation (AF). Digoxin also has numerous off-label uses, such as in fetal tachycardia, supra-ventricular tachycardia, cor pulmonale, and pulmonary hypertension. Digitoxin inhibits the Na-K-ATPase membrane pump, resulting in an increase in intracellular sodium and calcium concentrations. Increased intracellular concentrations of calcium may promote activation of contractile proteins (e.g., actin, myosin). Digoxin also has Para sympathomimetic properties. By increasing vagal tone in the sinoatrial and atrioventricular (AV) nodes, it slows the heart rate and AV nodal conduction.

Phenylbutazone is an anti-inflammatory drug, which binds to and inactivates cyclooxygenases and prostacyclin synthase through peroxide (H2O2) mediated deactivation. The reduced production of prostaglandin leads to reduced inflammation of the surrounding tissues. Phenylbutazone was marked under the brand name butazolidin for the treatment rheumatoid arthritis and gout, but then this usage was discontinued. In addition, phenylbutazone is used in UK for the treatment of ankylosing spondylitis, but only in those cases, when other therapies are unsuitable.

Iopanoic acid is a representative iodinated ionic monomeric contrast medium.