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Chardonna-2 Side Effects

Generic Name: atropine / hyoscyamine / phenobarbital / scopolamine

Note: This page contains information about the side effects of atropine / hyoscyamine / phenobarbital / scopolamine. Some of the dosage forms included on this document may not apply to the brand name Chardonna-2.

For the Consumer

Applies to atropine / hyoscyamine / phenobarbital / scopolamine: oral capsule, oral elixir, oral liquid, oral tablet, oral tablet extended release

In addition to its needed effects, some unwanted effects may be caused by atropine / hyoscyamine / phenobarbital / scopolamine. In the event that any of these side effects do occur, they may require medical attention.

Major Side Effects

You should check with your doctor immediately if any of these side effects occur when taking atropine / hyoscyamine / phenobarbital / scopolamine:

  • Eye pain
  • skin rash or hives
  • sore throat and fever
  • unusual bleeding or bruising
  • yellow eyes or skin

Minor Side Effects

Some of the side effects that can occur with atropine / hyoscyamine / phenobarbital / scopolamine may not need medical attention. As your body adjusts to the medicine during treatment these side effects may go away. Your health care professional may also be able to tell you about ways to reduce or prevent some of these side effects. If any of the following side effects continue, are bothersome or if you have any questions about them, check with your health care professional:

More common:
  • Constipation
  • decreased sweating
  • dizziness
  • dry mouth, nose, throat, or skin
Less common or rare:
  • Bloated feeling
  • blurred vision
  • decreased flow of breast milk
  • difficult urination
  • difficulty in swallowing
  • headache
  • increased sensitivity of eyes to sunlight
  • loss of memory
  • nausea or vomiting
  • unusual tiredness or weakness

For Healthcare Professionals

Applies to atropine / hyoscyamine / phenobarbital / scopolamine: oral capsule, oral elixir, oral liquid, oral tablet, oral tablet extended release


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


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


Cardiovascular side effects have included tachycardia and palpitation.[Ref]


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


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


Endocrine side effects have included suppression of lactation.[Ref]


Musculoskeletal side effects have included musculoskeletal pain.[Ref]

Nervous system

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


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.[Ref]


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.[Ref]


1. "Product Information. Donnatal (atropine/hyoscyamine/PB/scopolamine)." Allscripts Healthcare Solutions, Libertyville, IL.

Not all side effects for Chardonna-2 may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.

Disclaimer: Every effort has been made to ensure that the information provided is accurate, up-to-date and complete, but no guarantee is made to that effect. In addition, the drug information contained herein may be time sensitive and should not be utilized as a reference resource beyond the date hereof. This material does not endorse drugs, diagnose patients, or recommend therapy. This information is a reference resource designed as supplement to, and not a substitute for, the expertise, skill , knowledge, and judgement of healthcare practitioners in patient care. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate safety, effectiveness, or appropriateness for any given patient. does not assume any responsibility for any aspect of healthcare administered with the aid of materials provided. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the substances you are taking, check with your doctor, nurse, or pharmacist.