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R-Tannic-S A/D Side Effects

Generic name: phenylephrine / pyrilamine

Medically reviewed by Last updated on Jan 26, 2022.

Note: This document contains side effect information about phenylephrine / pyrilamine. Some dosage forms listed on this page may not apply to the brand name R-Tannic-S A/D.

Applies to phenylephrine/pyrilamine: oral liquid, oral suspension, oral suspension extended release, oral tablet, oral tablet chewable, oral tablet chewable extended release.


Cardiovascular side effects have included hypotension, hypertension, cardiac arrhythmias and palpitations.[Ref]


Dermatologic side effects have included urticaria, drug rash, photosensitivity and pruritus.[Ref]


Gastrointestinal side effects have included epigastric discomfort, anorexia, vomiting, diarrhea, and constipation.[Ref]


Genitourinary side effects have included urinary frequency and difficult urination.[Ref]

Nervous system

Nervous system side effects have included drowsiness, sedation, disturbed coordination, tremor, irritability, insomnia, nervousness, convulsions, headache, euphoria, and dysphoria.[Ref]


Ocular side effects have included visual disturbances.[Ref]


Hematologic side effects have included hemolytic anemia, thrombocytopenia, and agranulocytosis.[Ref]


Respiratory side effects have included tightness of chest, wheezing, and shortness of breath.[Ref]


General side effects have included dryness of mucous membranes.[Ref]

More about R-Tannic-S A / D (phenylephrine / pyrilamine)

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Related treatment guides


1. Product Information. Ryna-12 (phenylephrine-pyrilamine). Wallace Laboratories. 2002.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.