Frequently Observed: Probably the most frequently reported side effects are sleepiness, lightheadedness, dizziness, sedation, difficulty breathing, nausea, vomiting, abdominal discomfort, and intoxicated feeling.

Infrequently Observed: All adverse occasions tabulated below are called infrequent.

Central Nervous: headache, shaky feeling, tingling, agitation, fainting, fatigue, heavy eyelids, high energy, hot spells, numbness, sluggishness, seizure. Mental confusion, excitement or depression also occurs because of intolerance, specifically in seniors or debilitated patients, or because of overdosage of butalbital.

Autonomic Nervous: xerostomia, hyperhidrosis.

Gastrointestinal: difficulty swallowing, acid reflux, wind, constipation.

Cardiovascular: tachycardia.

Musculoskeletal: leg discomfort, muscle fatigue.

Genitourinary: diuresis.

Miscellaneous: pruritus, fever, earache, nasal congestion, tinnitus, excitement, allergy symptoms.

The next side effects happen to be under your own accord reported as temporally connected with Fiorinal®1 with Codeine, an associated product that contains aspirin, butalbital, caffeine, and codeine phosphate.

Central Nervous: abuse, addiction, anxiety, disorientation, hallucination, hyperactivity, insomnia, libido decrease, nervousness, neuropathy, psychosis, intercourse increase, slurred speech, twitching, unconsciousness, vertigo.

Autonomic Nervous: epistaxis, flushing, miosis, salivation.

Gastrointestinal: anorexia, appetite elevated, diarrhea, esophagitis, gastroenteritis, gastrointestinal spasms, hiccup, mouth burning, pyloric ulcer.

Cardiovascular: chest discomfort, hypotensive reaction, palpitations, syncope.

Skin: erythema, erythema multiforme, exfoliative eczema, hives, rash, toxic epidermal necrolysis.

Urinary: kidney impairment, urinary difficulty.

Miscellaneous: allergic attack, anaphylactic shock, cholangiocarcinoma, drug interaction with erythromycin (stomach upset), edema.

The next adverse drug occasions might be borne in your mind as potential results of the constituents of Butalbital, Acetaminophen, Caffeine, and Codeine Phosphate Capsules. Potential results of high dosage are indexed by the OVERDOSAGE section.

Acetaminophen: allergy symptoms, rash, thrombocytopenia, agranulocytosis.

Caffeine: cardiac stimulation, irritability, tremor, dependence, nephrotoxicity, hyperglycemia.

Codeine: nausea, vomiting, sleepiness, lightheadedness, constipation, pruritus. Several installments of dermatological reactions, including toxic epidermal necrolysis and erythema multiforme, happen to be reported for Butalbital, Acetaminophen, Caffeine and Codeine Phosphate Capsules, USP.


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