Side effects from propoxyphene are common:

dizziness
sleepy
nausea
vomiting

Tell your doctor if any of these symptoms are severe or do not go away:

dizziness
lightheadedness
drowsiness
upset stomach
vomiting
constipation
stomach pain
skin rash
mood changes
headache

If you experience the following symptom, call your doctor immediately:

an allergic reaction (difficulty breathing; closing of your throat; swelling of your lips, tongue, or face; or hives)
seizures
cold, clammy skin
unconsciousness
severe weakness or dizziness

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

 

FDA Information

Why is this medication prescribed?

Other uses for this medicine

Dosage and using this medicine

What special precautions should I follow?

What should I do if I forget a dose?

What storage conditions are needed for this medicine?

In case of an emergency/overdose