A GI cocktail, often called a "pink lady," is a mix of liquid medicines given in emergency departments and hospitals for indigestion, heartburn, and upper-abdominal pain. It usually combines a liquid antacid, viscous lidocaine to numb the throat and esophagus, and sometimes an anticholinergic such as Donnatal. The catch: the best trials show antacid alone works just as well, with fewer side effects.
How a GI cocktail visit is coded and billed
For billing teams, the cocktail itself is rarely the main line item; the ED visit is. Common diagnosis codes include R10.13 (epigastric pain), K30 (functional dyspepsia), R12 (heartburn), K21.9 (GERD without esophagitis), and R07.89 or R07.9 for chest pain when the source isn't confirmed. Oral medications given in hospital outpatient settings are usually charged through pharmacy revenue codes. For Medicare patients, they can fall under the self-administered drug exclusion and become patient responsibility, so check how your facility charges them.
GI cocktail ingredients
"GI cocktail" isn't a branded product. Each hospital mixes its own, from three types of ingredients:
Ingredient | Common product | What it does | Amounts used in published trials |
|---|---|---|---|
Liquid antacid | Maalox or Mylanta (aluminum hydroxide, magnesium hydroxide, simethicone) | Neutralizes stomach acid | 20–30 mL |
Topical anesthetic | Viscous lidocaine 2% (Xylocaine Viscous) | Numbs the mouth, throat, and esophagus | 5–15 mL |
Anticholinergic (optional) | Donnatal elixir (phenobarbital with belladonna alkaloids) | Eases cramping and spasm; mildly sedating | 10 mL |
The doses vary because trials used different recipes. Berman's 2003 trial used 30 mL antacid, 10 mL Donnatal, and 10 mL viscous lidocaine. Warren's 2020 trial used 20 mL antacid. Older reference recipes use 5 mL lidocaine.
This is a clinician-ordered treatment, not a home remedy. Viscous lidocaine is prescription-only and dangerous in excess.
Why EDs give GI cocktails
Patients typically receive one for dyspepsia symptoms: burning or gnawing upper-abdominal pain, heartburn, bloating, belching, nausea, or chest discomfort that seems to come from the stomach. A 1995 study of 97 ED patients found about half got it for abdominal pain and 41% for chest pain, and most also received another drug within minutes, which makes its effect hard to judge.
Does a GI cocktail work? What the trials show
Study | Patients | What was compared | Result |
|---|---|---|---|
Welling and Watson, 1990 | ED, single-blind | Antacid with or without 15 mL viscous lidocaine | Lidocaine group improved more (40 mm vs 9 mm on a 100-mm pain scale), but the study wasn't double-blind |
Berman et al., 2003 | 113, double-blind | Antacid vs antacid + Donnatal vs antacid + Donnatal + lidocaine | No significant difference; adding Donnatal or lidocaine didn't help |
Warren et al., 2020 | 89, double-blind | Antacid vs antacid + lidocaine solution vs antacid + viscous lidocaine | No significant difference at 30 or 60 minutes; antacid alone tasted better and caused fewer side effects |
In Warren's trial, antacid alone and antacid with lidocaine solution both cut pain by a clinically meaningful amount at 30 minutes (20 mm and 17 mm). The traditional antacid-plus-viscous-lidocaine mix did not (9 mm). The authors recommended dropping lidocaine and using antacid monotherapy.
Bottom line: the extra ingredients add cost, side effects, and a worse taste without adding relief.
GI cocktails and chest pain: an important warning
Feeling better after a GI cocktail does not prove the pain came from the stomach. Heart attack pain can ease on its own or with other drugs given at the same time, and studies haven't shown that the cocktail improves diagnostic accuracy. Chest pain still needs a standard cardiac workup, including an ECG and troponin testing when indicated.
GI cocktail side effects and risks
Antacids: constipation (aluminum), diarrhea (magnesium), nausea; caution in kidney disease because magnesium and aluminum can accumulate.
Viscous lidocaine: numb throat, dizziness, and drowsiness. Numbness can impair swallowing, so patients are often told not to eat or drink for about an hour. Too much can cause seizures or heart rhythm problems. The FDA requires a boxed warning against using oral viscous lidocaine for teething pain in infants and young children.
Donnatal: dry mouth, blurred vision, urinary retention, and sedation; avoided in glaucoma and other conditions sensitive to anticholinergics.
FAQ
What is in a GI cocktail?
A liquid antacid (such as Maalox or Mylanta), viscous lidocaine, and sometimes an anticholinergic such as Donnatal.
Why is it called a pink lady?
It's a common hospital nickname for the mix. It doesn't refer to a fixed recipe, and some hospitals use other names.
How fast does a GI cocktail work?
In trials, pain was measured at 30 and 60 minutes, and most patients improved by 30 minutes.
Is a GI cocktail better than an antacid alone?
No. Two double-blind trials found no added benefit from lidocaine or Donnatal.
Can I make a GI cocktail at home?
No. Viscous lidocaine requires a prescription and can be dangerous in excess. For mild indigestion, an over-the-counter antacid used as labeled is the evidence-backed option; seek care for chest pain.
Sources: Berman et al. 2003 abstract · Warren et al. 2020 on PubMed · SGEM review of the 2020 trial · SAEM news release · Wrenn et al. 1995 descriptive study · Wikipedia overview
