HWN Suggests

The Discontinuation of Donnatal: A Look Back at Its Legacy and Lessons Learned

Donnatal, a medication that once held a prominent place in the treatment of gastrointestinal disorders, has quietly slipped into obscurity. Introduced by Merck & Co. in the 1940s, it was celebrated for its unique blend of belladonna alkaloids and phenobarbital—ingredients that worked together to ease both physical symptoms like cramping and psychological stress associated with conditions such as irritable bowel syndrome (IBS). But what led to this beloved drug's discontinuation? The answer lies not just in one factor but rather a complex interplay of safety concerns, evolving medical standards, and regulatory pressures.

read full article

Featured

 What is the recommended use of Donnatal (belladonna and phenobarbital) for gastrointestinal disorders?

Donnatal works through dual mechanisms: the anticholinergic belladonna alkaloids reduce smooth muscle spasms in the gastrointestinal tract, while phenobarbital provides mild sedative effects that can help reduce anxiety-related GI symptoms. However, Donnatal is no longer considered a first-line treatment due to limited evidence supporting its efficacy and potential side effects including dry mouth, urinary retention, blurred vision, and drowsiness, as noted in various studies

Articles of Interest

Belladonna Alkaloids and Phenobarbital Use in the Treatment of Irritable Bowel Syndrome: A Review

Even though drugs such as a combination of belladonna alkaloids/phenobarbital or Donnatal® , are used safely and effectively to manage IBS, their history of clinical investigation and results are not well-recognized by the field of gastroenterology given the lack of recent studies

Bentyl vs Donnatal

Bentyl is an anticholinergic medication which means it works by blocking a neurotransmitter called acetylcholine in the nervous system to slow down gut movement while providing relief from spasms. On the other hand, Donnatal combines natural belladonna alkaloids along with phenobarbital primarily affecting levels of multiple neurotransmitters at once resulting in decreased motion within your gastrointestinal tract.

The Side Effects of Donnatal Elixir

Donnatal Elixir is a prescription liquid medication used to treat irritable bowel syndrome (IBS) and other functional gastrointestinal disorders. It combines a mild sedative with anticholinergic agents to reduce muscle spasms and cramping in the gut. The elixir formulation can be easier for some patients to take than tablets. Due to its phenobarbital content, Donnatal Elixir is a controlled substance with a risk of dependence.

What You Need to Know About Donnatal (Belladonna/Phenobarbital)

Donnatal is a type of drug called an anticholinergic and is actually a combination of two drugs: belladonna and phenobarbital. It is used to relax the muscles in the bladder and the intestines as well as to reduce stomach acid. It’s also important to know that phenobarbital is a mild sedative.1 Other brand names are Phenohytro and Quadrapax. Note that, according to the drug’s label, “This drug has not been found by FDA to be safe and effective, and this labeling has not been approved by FDA.”