Nitrosol Spray Dosage/Direction for Use

At the onset of an attack, one or two metered sprays should be administered on or under the tongue. A spray may be repeated approximately every 5 minutes as needed. No more than 3 metered sprays are recommended within a 15 minute period. If chest pain persists after a total of 3 sprays, prompt medical attention is recommended. Nitrosol may be used prophylactically 5 to 10 minutes before engaging in activities that might precipitate an acute attack.
Mode of Administration: Sublingual: During use the patient should rest, ideally in the sitting position. The container should be held vertically with the valve head uppermost and the spray orifice as close to the mouth as possible. The dose should preferably be sprayed into the mouth on or under the tongue by pressing the button firmly and the mouth should be closed immediately after each dose. The Spray should not be inhaled. Patients should be instructed to familiarize themselves with the position of the spray orifice, which can be identified by the finger rest on top of the valve, in order to facilitate orientation for administration at night.
Sit down if possible.
Remove the cap. Hold the aerosol upright with forefinger on top of the white button.
Open the mouth and bring as close as possible, aiming it under the tongue.
Press the button firmly, directing the aerosol under the tongue.
Close the mouth immediately but do not breathe the medicine in.
If necessary, repeat for a second time following the steps as mentioned.