Pentazocine / Acetaminophen Coupon - Pentazocine / Acetaminophen 25mg/650mg tablet
FDA Update

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Pentazocine / Acetaminophen Coupon - Pentazocine / Acetaminophen 25mg/650mg tablet

Pentazocine / Acetaminophen Side Effects

Interactions with Medications

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:


Back, leg, or stomach pains

black, tarry stools

bleeding gums

blistering, peeling, or loosening of the skin

burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings

chest pain


cough or hoarseness

dark urine

decrease in the frequency of urination

decrease in urine volume


difficult or troubled breathing

difficulty in passing urine (dribbling)

difficulty with swallowing


fast heartbeat


fever with or without chills

general body swelling

general feeling of tiredness or weakness



irregular, fast or slow, or shallow breathing


joint or muscle pain

loss of appetite

lower back or side pain

nausea or vomiting


painful or difficult urination

pale or blue lips, fingernails, or skin

pale skin

puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue

red skin lesions, often with a purple center

red, irritated eyes

shakiness in the legs, arms, hands, or feet

shortness of breath

skin rash

sore throat

sores, ulcers, or white spots on the lips or in the mouth

swelling or puffiness of the face

swollen glands

tightness in the chest

trembling or shaking of the hands or feet

unusual bleeding or bruising

unusual tiredness or weakness


yellowing of the eyes or skin

Incidence not known

Blood in the urine

bloody nose


fast, pounding, or irregular heartbeat or pulse

feeling of warmth

heavier menstrual periods

pinpoint red spots on the skin

redness of the face, neck, arms, and occasionally, upper chest


Get emergency help immediately if any of the following symptoms of overdose occur:

Symptoms of overdose

Abdominal or stomach pain or tenderness

bleeding gums

bloody or cloudy urine

blurred vision

clay-colored stools

cold sweats


cool, pale skin

decreased appetite



fear or nervousness

increased hunger

muscle tremors


rapid, deep breathing


seeing, hearing, or feeling things that are not there


slurred speech

stomach cramps

strange thoughts

sudden decrease in the amount of urine

sugar in the urine

swelling of the feet or lower legs

unpleasant breath odor

unusual bleeding or bruising

unusual drowsiness, dullness, tiredness, weakness, or feeling of sluggishness

vomiting of blood

weight loss

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:


Continuing ringing or buzzing or other unexplained noise in the ears


hearing loss

hives or welts


redness of the skin

Incidence not known

Confusion about identity, place, and time


difficulty in focusing the eyes

disturbed dreams


false or unusual sense of well-being

relaxed and calm feeling



trouble sleeping

unable to sleep


Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

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