Intracranial bleeding
Types of intracranial hemorrhage are roughly grouped into intra-axial and extra-axial. The hemorrhage is considered a focal brain injury; that is, it occurs in a localized spot rather than causing diffuse damage over a wider area. Intra-axial bleeding
Intra-axial hemorrhage is bleeding within the brain itself, or cerebral hemorrhage. This category includes intraparenchymal hemorrhage, or bleeding within the brain tissue, and intraventricular hemorrhage, bleeding within the brains ventricles (particularly of premature infants). Intra-axial hemorrhages are more dangerous and harder to treat than extra-axial bleeds. Extra-axial bleeding
Extra-axial hemorrhage, bleeding that occurs within the skull but outside of the brain tissue, falls into three subtypes:

Epidural hemorrhage (extradural hemorrhage)  which occur between the dura mater (the outermost meninx) and the skull, is caused by trauma. It may result from laceration of an artery, most commonly the middle meningeal artery. This is a very dangerous type of injury because the bleed is from a high-pressure system and deadly increases in intracranial pressure can result rapidly. However, it is the least common type of meningeal bleeding and is seen in 1% to 3% cases of head injury. Patients have a loss of consciousness (LOC), then a lucid interval, then sudden deterioration (vomiting, restlessness, LOC)
Head CT shows lenticular (convex) deformity. Subdural hemorrhage results from tearing of the bridging veins in the subdural space between the dura and arachnoid mater. Head CT shows crescent-shaped deformity
Subarachnoid hemorrhage, which occur between the arachnoid and pia meningeal layers, like intraparenchymal hemorrhage, can result either from trauma or from ruptures of aneurysms or arteriovenous malformations.
An ACE inhibitor and thiazide combination is a drug combination used to treat hypertension (high blood pressure). They are given by mouth. ACE inhibitors reduce the activity of angiotensin-converting enzyme (ACE) which produces angiotensin II, a hormone that constricts blood vessels. Thiazides are a class of diuretics that inhibit the thiazide receptor, thereby increasing urine production and reducing excess water and salt in the body. Several organizations recommend combination therapy for hypertension in cases of failure of a single drug to achieve target blood pressure, or even as a first line treatment for some patients. Examples
Enalapril/hydrochlorothiazide (trade name Enalapril comp), wherein enalapril is the ACE inhibitor and hydrochlorothiazide is the thiazide. Quinapril/hydrochlorothiazide (trade name Accuretic)
Lisinopril/hydrochlorothiazide is marketed as Prinzide, Zestoretic, and many others. Fosinopril/hydrochlorothiazide
Fosinopril/hydrochlorothiazide (trade name Monopril HCT) has a boxed warning about its risk to cause morbidity and mortality in the baby when being used during pregnancy (2nd and 3rd trimesters).FDA  modified its labeling on February, 2009 to include a precaution of drug interaction with gold. "Nitritoid reactions (symptoms include facial flushing, nausea, vomiting and hypotension) have been reported rarely in patients on therapy with injectable gold (sodium aurothiomalate) and concomitant ACE inhibitor therapy including Monopril/Monopril HCT." See also
Perindopril/indapamide, a combination of an ACE inhibitor and a thiazide-like diuretic


== References ==