Drug information provided by: Micromedex
To use amyl nitrite:
When you begin to feel an attack of angina starting (chest pains or a tightness or squeezing in the chest), sit down. Then crush the cloth-covered glass capsule containing amyl nitrite between your finger and thumb. Pass it back and forth close to your nose and inhale the vapor several (1 to 6) times. Since you may become dizzy, lightheaded, or faint soon after using amyl nitrite, it is best to sit or lie down rather than stand while the medicine is working. If you become dizzy or faint while sitting, take several deep breaths of air and either bend forward with your head between your knees or lie down with your feet elevated.
Remain calm and you should feel better in a few minutes.
Use this medicine exactly as directed by your doctor , and do not use more than your doctor ordered. Using too much amyl nitrite may cause a dangerous overdose. If the medicine does not seem to be working as well after you have used it for a while, check with your doctor. Do not increase the dose on your own.
The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
For inhalation dosage form:
Adults: 0.3 milliliter (1 ampul) taken by inhaling the vapor of amyl nitrite through the nose. Dose may be repeated within 1 to 5 minutes if pain is not relieved. If you still have chest pain after a total of 2 doses in a 10-minute period, contact your doctor or have someone take you to a hospital emergency room without delay.
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.