Fentanyl is available as a skin patch, lozenge, pills, shots, a film that dissolves in your mouth, nasal spray, or by IV (intravenous) . Use fentanyl exactly as prescribed by your doctor. This is very important so that you do not get too much of the drug.entanyl is available as a skin patch, lozenge, pills, shots, a film that dissolves in your mouth, nasal spray, or by IV (intravenous) . Use fentanyl exactly as prescribed by your doctor. This is very important so that you do not get too much of the drug.
Some medical conditions can cause low blood pressure. These include: 1  Pregnancy. 2  Because a woman's circulatory system expands rapidly during pregnancy, blood pressure is likely to drop. 3  This is normal, and blood pressure usually returns to your pre-pregnancy level after you've given birth.
Low blood pressure or hypotension is a condition in which the blood pressure is lower than normal. It means that the heart, brain and other parts of the body are not getting enough blood. Low blood pressure in children is curable, but it is important diagnose its cause to ascertain the treatment.