Donnatal Side Effects

Please note - some side effects for Donnatal may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA at http://www.fda.gov/medwatch/ or 1-800-FDA-1088 (1-800-332-1088).

Side Effects of Donnatal - for the Consumer

Donnatal

All medicines may cause side effects, but many people have no, or minor side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Donnatal:

Bloated feeling; blurred vision; clumsiness; constipation; decreased sweating; dizziness; drowsiness; dry mouth; excessive daytime drowsiness ("hangover effect"); feeling of a whirling motion; headache; lightheadedness; nausea; nervousness; tired feeling; trouble sleeping.

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); agitation; confusion; diarrhea; difficulty focusing eyes; disorientation; exaggerated feeling of well-being; excitement; fainting; fast or irregular heartbeat; hallucinations; loss of coordination; loss of taste; memory loss; muscle pain; pounding in the chest; severe or persistent trouble sleeping; trouble urinating; unusual weakness; very slow breathing; vision changes; vomiting.

Donnatal Extentabs Controlled-Release Tablets

All medicines may cause side effects, but many people have no, or minor side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Donnatal Extentabs Controlled-Release Tablets:

Bloated feeling; blurred vision; clumsiness; constipation; decreased sweating; dizziness; drowsiness; dry mouth; excessive daytime drowsiness ("hangover effect"); feeling of a whirling motion; headache; lightheadedness; nausea; nervousness; tired feeling; trouble sleeping.

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); agitation; confusion; diarrhea; difficulty focusing eyes; disorientation; exaggerated feeling of well-being; excitement; fainting; fast or irregular heartbeat; hallucinations; loss of coordination; loss of taste; memory loss; muscle pain; pounding in the chest; severe or persistent trouble sleeping; trouble urinating; unusual weakness; very slow breathing; vision changes; vomiting.

Donnatal Elixir

All medicines may cause side effects, but many people have no, or minor side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Donnatal Elixir:

Bloated feeling; blurred vision; clumsiness; constipation; decreased sweating; dizziness; drowsiness; dry mouth; excessive daytime drowsiness ("hangover effect"); feeling of a whirling motion; headache; lightheadedness; nausea; nervousness; tired feeling; trouble sleeping.

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); agitation; confusion; diarrhea; difficulty focusing eyes; disorientation; exaggerated feeling of well-being; excitement; fainting; fast or irregular heartbeat; hallucinations; loss of coordination; loss of taste; memory loss; muscle pain; pounding in the chest; severe or persistent trouble sleeping; trouble urinating; unusual weakness; very slow breathing; vision changes; vomiting.

Side Effects by Body System

Gastrointestinal

Gastrointestinal side effects have included xerostomia, nausea, vomiting, constipation, and bloating.

Genitourinary

Genitourinary side effects have included urinary hesitancy, urinary retention, and impotence.

Cardiovascular

Cardiovascular side effects have included tachycardia and palpitation.

Ocular

Ocular side effects have included blurred vision, mydriasis, cycloplegia, and increased ocular tension.

Hypersensitivity

Hypersensitivity reactions have included severe allergic reactions, anaphylaxis, urticaria, and other dermal manifestations.

Endocrine

Endocrine side effects have included suppression of lactation.

Musculoskeletal

Musculoskeletal side effects have included musculoskeletal pain.

Nervous system

Nervous system side effects have included headache, excitement, and agitation.

Psychiatric

Psychiatric side effects have included excitement in some patients and sedation in other patients with use of phenobarbital. Abrupt withdrawal from phenobarbital may produce delirium or convulsions.

General

General side effects have included drowsiness, weakness, loss of taste sense, decreased sweating, and insomnia. Elderly patients may react with symptoms of excitement, agitation, drowsiness, and other untoward manifestations to even small doses of the drug.

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