Side Effects

Información sobre medicamentos proporcionada por: IBM Micromedex

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:

More common

1. Blurred vision
2. confusion
3. constipation
4. dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
5. fainting
6. fast, pounding, or irregular heartbeat or pulse
7. fever
8. nausea
9. shakiness in the legs, arms, hands, or feet
10. sleepiness or unusual drowsiness
11. sweating
12. trembling or shaking of the hands or feet
13. unusual tiredness or weakness
14. vomiting

Less common

1. Anxiety
2. black, tarry stools
3. chest pain
4. chills
5. convulsions
6. cough or hoarseness
7. decrease in the frequency of urination
8. decrease in urine volume
9. difficult or labored breathing
10. difficulty in passing urine (dribbling)
11. discouragement
12. dry mouth
13. feeling sad or empty
14. fever with or without chills
15. frequent strong or increased urge to urinate
16. general feeling of tiredness or weakness
17. headache
18. hyperventilation
19. irritability
20. lack of appetite
21. loss of bladder control
22. loss of interest or pleasure
23. lower back or side pain
24. muscle spasm or jerking of the arms or legs
25. painful or difficult urination
26. pounding in the ears
27. restlessness or need to keep moving
28. severe or continuing headache
29. shakiness and unsteady walk
30. slurred speech
31. sore throat
32. sores, ulcers, or white spots on the lips or in the mouth
33. sudden jerky movements of the body
34. sudden loss of consciousness
35. swollen glands
36. throat discomfort
37. tightness in the chest
38. trouble concentrating
39. trouble sleeping
40. unsteadiness, trembling, or other problems with muscle control or coordination

Rare

1. Absence of or decrease in movement
2. change in appetite
3. dark urine
4. decreased sexual ability
5. difficult or fast breathing or sudden shortness of breath
6. increased sweating
7. increased thirst
8. increased urination
9. lip smacking or puckering
10. muscle stiffness (severe)
11. puffing of the cheeks
12. rapid or worm-like movements of the tongue
13. swelling or pain in the leg
14. uncontrolled chewing movements
15. uncontrolled movements of the arms and legs
16. unusual bleeding or bruising
17. unusually pale skin
18. weakness
19. yellow eyes or skin

Incidence not known

1. Bloating
2. burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
3. clay-colored stools
4. confusion as to time, place, or person
5. diarrhea
6. epileptic seizure that will not stop
7. feeling that others are watching you or controlling your behavior
8. feeling that others can hear your thoughts
9. feeling, seeing, or hearing things that are not there
10. holding false beliefs that cannot be changed by fact
11. inability to move the eyes
12. increased blinking or spasms of the eyelid
13. indigestion
14. itching or skin rash
15. joint pain
16. light-colored stools
17. muscle twitching
18. pains in the stomach, side, or abdomen, possibly radiating to the back
19. rhythmic movement of the muscles
20. severe mood or mental changes
21. sticking out of the tongue
22. swelling around the eyes
23. swelling of the body or feet and ankles
24. trouble with speaking
25. unpleasant breath odor
26. unusual behavior
27. unusual excitement, nervousness, or restlessness
28. unusual facial expressions
29. unusual weight gain
30. upper right abdominal or stomach pain
31. vomiting of blood

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:

More common

1. Acid or sour stomach
2. belching
3. feeling of constant movement of self or surroundings
4. heartburn
5. relaxed and calm sensation of spinning
6. sleepiness

Less common

1. Blurred or loss of vision
2. change or problem with discharge of semen
3. disturbed color perception
4. double vision
5. halos around lights
6. inability to sit still
7. increase in body movements
8. muscle ache or pain
9. muscle weakness
10. night blindness
11. nightmares
12. overbright appearance of lights
13. pain in the back, neck, or legs
14. pain in the chest below the breastbone
15. severe muscle stiffness
16. sore tongue
17. stuffy nose
18. tunnel vision
19. unusual drowsiness, dullness, tiredness, weakness, or feeling of sluggishness

Incidence not known

1. Blistering, peeling, or loosening of the skin
2. hives, sores, welting, or blisters
3. increased sensitivity of the skin to sunlight
4. painful or prolonged erection of the penis
5. red skin lesions, often with a purple center
6. red, irritated eyes
7. reddening of the skin, especially around the ears
8. severe stomach pain
9. severe sunburn
10. swelling of the eyes, face, or inside of the nose
11. swelling of the salivary glands

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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Portions of this document last updated: Feb. 01, 2023

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