Nitrates Sublingual, Chewable, or Buccal (Systemic)
Precautions While Using This MedicineDo not take sildenafil (e.g.,
Viagra) if you are taking this medicine. When sildenafil is taken with nitrates,
the combination can lower blood pressure and cause dizziness, lightheadedness,
or fainting. In some case, sildenafil taken with nitrates
has caused death
.
If you have been taking this medicine regularly for
several weeks, do not suddenly stop using it
. Stopping suddenly may
bring on attacks of angina. Check with your doctor for the best way to reduce
gradually the amount you are taking before stopping completely.
Dizziness, lightheadedness, or faintness may occur
, especially when you get up quickly from a lying or sitting position.
Getting up slowly may help. If you feel dizzy, sit or lie down.
The dizziness, lightheadedness, or fainting is also more likely to occur
if you drink alcohol, stand for long periods of time, exercise, or if the
weather is hot. While you are taking this medicine, be
careful to limit the amount of alcohol you drink. Also, use extra care during
exercise or hot weather or if you must stand for long periods of time
.
After taking a dose of this medicine you may get a
headache that lasts for a short time. This is a common side effect
,
which should become less noticeable after you have taken the medicine for
a while. If this effect continues or if the headaches are severe, check with
your doctor.
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