Place the tablet under the tongue. Let it dissolve without chewing or swallowing it.

Use the medication at the first sign of an attack. Sit or lie down after using it. If you don't feel better within 5 minutes, you may use up to 2 more doses, each 5 minutes apart. If you are still not better after 3 doses, seek medical attention immediately.

Generally, this medication is used only as needed. Consuming alcohol may intensify the toxicity of this product. Avoid or limit alcohol consumption during treatment.

In addition to its desired action, this medication may cause some side effects, notably:

• it may cause headaches;
• it may cause redness of the face;
• it may cause vomiting.

• it may cause dizziness - use caution when getting up from a lying or sitting position and use caution if driving;
• it may cause palpitations (rapid and strong heart beat);

Each person may react differently to a treatment. If you think this medication may be causing side effects (including those described here, or others), talk to your health care professional. He or she can help you to determine whether or not the medication is the source of the problem.

To remain effective, this product must be kept in its original packaging. Do not transfer it to another container. As with most medications, this product should be stored at room temperature. Store it in a secure location where it will not be exposed to excessive heat, moisture or direct sunlight. Make sure that any leftover portion is disposed of safely.