Carbihist

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:

• Blurred vision
• chills
• confusion
• cough
• decrease in the frequency of urination
• decrease in urine volume
• difficult or painful urination
• difficulty in passing urine (dribbling)
• difficulty with swallowing
• dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
• fast, irregular, pounding, or racing heartbeat or pulse
• hives or welts
• itching
• puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
• rash
• redness of the skin
• skin rash
• sweating
• tightness in the chest
• unusual tiredness or weakness

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

• Agitation
• anxiety
• bloating
• convulsions
• diarrhea
• difficulty with sleeping
• disorientation
• dizziness
• drowsiness to profound coma
• dry mouth
• feeling of warmth
• fixed and enlarged pupils
• gas
• headache
• lethargy
• lightheadedness
• loss of appetite
• nausea
• redness of the face, neck, arms, and occasionally, upper chest
• seeing, hearing, or feeling things that are not there
• stomach pain
• tightness of the chest
• trouble breathing
• vomiting

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:

• Disturbed coordination
• drowsiness
• sleepiness

• Back, leg, or stomach pains
• black, tarry stools
• bleeding gums
• blood in the urine or stools
• blurred vision
• burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
• chills
• confusion
• continuing ringing or buzzing or other unexplained noise in the ears
• cough or hoarseness
• dark urine
• difficulty breathing
• difficulty having a bowel movement (stool)
• dizziness or lightheadedness
• double vision
• dry mouth, nose, and throat
• feeling excited
• feeling of constant movement of self or surroundings
• fever with or without chills
• general body swelling
• general feeling of tiredness or weakness
• headache
• hearing loss
• increased sensitivity of the skin to sunlight
• itching
• loss of appetite
• lower back or side pain
• nosebleeds
• pale skin
• pinpoint red spots on the skin
• redness or other discoloration of the skin
• restlessness
• seeing double
• seizures
• sensation of spinning
• severe sunburn
• shakiness in the legs, arms, hands, or feet
• sore throat
• sores, ulcers, or white spots on the lips or in the mouth
• trembling or shaking of the hands or feet
• trouble sleeping
• unusual bleeding or bruising
• weight loss
• yellowing of the eyes or skin

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.

Applies to carbinoxamine: oral capsule extended release, oral liquid, oral suspension, oral suspension extended release, oral tablet, oral tablet extended release

Nervous system

Nervous system side effects have included sedation, dizziness, headache, and nervousness.[Ref]

Ocular

Ocular side effects have included diplopia.[Ref]

Gastrointestinal

Gastrointestinal side effects have included vomiting, diarrhea, dry mouth, nausea, heartburn, and anorexia.[Ref]

Other

Other side effects have included weakness.[Ref]

Genitourinary

Genitourinary side effects have included polyuria.[Ref]

Some side effects of carbinoxamine may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.

Tablet (carbinoxamine maleate 4 mg): 1 tablet orally daily as needed; may increase dosage as needed up to a maximum of 24 mg/day in divided doses every 6 to 8 hours

Capsule, extended-release (carbinoxamine maleate 2 mg/8 mg): 1 capsule orally every 12 hours, not to exceed 2 capsules in a 24-hour period

Solution (carbinoxamine maleate 4 mg/5 mL): 5 mL orally daily as needed; may increase dosage as needed up to a maximum of 24 mg/day in divided doses every 6 to 8 hours

Suspension (carbinoxamine maleate-tannate 2 mg-6 mg/5 mL): 5 mL orally every 12 hours

Tablet (carbinoxamine maleate 4 mg): 1 tablet orally daily as needed; may increase dosage as needed up to a maximum of 24 mg/day in divided doses every 6 to 8 hours

Solution (carbinoxamine maleate 4 mg/5 mL): 5 mL orally daily as needed; may increase dosage as needed up to a maximum of 24 mg/day in divided doses every 6 to 8 hours

Tablet (carbinoxamine maleate 4 mg): 1 tablet orally daily as needed; may increase dosage as needed up to a maximum of 24 mg/day in divided doses every 6 to 8 hours

Solution (carbinoxamine maleate 4 mg/5 mL): 5 mL orally daily as needed; may increase dosage as needed up to a maximum of 24 mg/day in divided doses every 6 to 8 hours

Liquid (carbinoxamine maleate 1.75 mg/5 mL):
Liquid (carbinoxamine maleate 1.5 mg/5 mL):
<2 years: Safety and effectiveness unknown
2 years to 6 years: 5 mL orally 4 times a day
>=6 years: 10 mL orally 4 times a day

Liquid (carbinoxamine maleate 4 mg/5 mL):
Suspension (carbinoxamine maleate-tannate 2 mg-6 mg/5 mL):
<2 years: Safety and effectiveness unknown
2 years to 6 years: 2.5 mL orally 4 times a day
>=6 years: 5 mL orally 4 times a day

Solution (carbinoxamine maleate 4 mg/5 mL):
<2 years: Safety and effectiveness unknown
2 years to 6 years: 2.5 mL orally daily as needed; may increase dosage as needed, approximately 0.2 to 0.4 mg/kg/day in divided doses every 6 to 8 hours
>=6 years: 5 mL orally daily as needed; may increase dosage as needed up to a maximum of 24 mg/day in divided doses every 6 to 8 hours

Tablet (carbinoxamine maleate 4 mg):
<2 years: Safety and effectiveness unknown
2 to 6 years: 1/2 tablet orally daily as needed; may increase dosage as needed, approximately 0.2 to 0.4 mg/kg/day in divided doses every 6 to 8 hours
>=6 years: 1 tablet orally daily as needed; may increase dosage as needed up to a maximum of 24 mg/day in divided doses every 6 to 8 hours

Tablet, timed-release (carbinoxamine maleate 8 mg):
6 to 12 years: 1/2 tablet orally every 12 hours
>=12 years: 1 tablet orally every 12 hours

Capsule, extended-release (carbinoxamine maleate 2 mg/8 mg):
>=12 years: 1 capsule orally every 12 hours, not to exceed 2 capsules in a 24-hour period

Extended release suspension (carbinoxamine tannate 3.6 mg/5 mL):
2 years to 6 years: 2.5 to 5 mL orally every 12 hours
6 years to 12 years: 5 to 10 mL orally every 12 hours
12 years to 18 years: 10 to 20 mL orally every 12 hours

Data not available