Helidac side effects by duration, gender and age - a phase IV clinical study of FDA data
Summary:
Side effects are reported by people who take Helidac. Common side effects include abdominal pain among females, and haemorrhage intracranial among males.
The phase IV clinical study is created by eHealthMe based on 50 reports from the FDA, and is updated regularly. You can use the study as a second opinion to make health care decisions.
Phase IV trials are used to detect adverse drug outcomes and monitor drug effectiveness in the real world. With medical big data and AI algorithms, eHealthMe is running millions of phase IV trials and makes the results available to the public. Our original studies have been referenced on 700+ medical publications including The Lancet, Mayo Clinic Proceedings, and Nature.
50 people who take Helidac and have side effects are studied.
What is Helidac?
Helidac has active ingredients of bismuth subsalicylate; metronidazole; tetracycline hydrochloride. Currently, eHealthMe is studying from 56 Helidac users.
Number of Helidac reports submitted per year:

Helidac side effects by time on the drug*:
< 1 month:
- Abdominal distension
- Anaphylactic reaction (serious allergic reaction)
- Cholecystitis (infection of gallbladder)
- Dehydration (dryness resulting from the removal of water)
- Dysgeusia (disorder of the sense of taste)
- Grand mal convulsion (a type of generalized seizure that affects the entire brain)
- Nausea (feeling of having an urge to vomit)
1 - 6 months:
n/a
6 - 12 months:
n/a
1 - 2 years:
n/a
2 - 5 years:
n/a
5 - 10 years:
n/a
10+ years:
n/a
not specified:
- Haemorrhage intracranial (bleeding within the skull)
- Abdominal distension
- Abdominal pain
- Alpha 1 foetoprotein increased
- Anxiety
- Arrhythmia (irregular heartbeat)
- Back pain
- Cardiac failure congestive
- Chest pain
- Deep vein thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis)
Helidac side effects by gender *:
female:
- Abdominal pain
- Back pain
- Cardiac failure congestive
- Chest pain
- Cholecystitis (infection of gallbladder)
- Chronic kidney disease
- Deep vein thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis)
- Dehydration (dryness resulting from the removal of water)
- Diabetes mellitus (diabetes, caused by a deficiency of the pancreatic hormone insulin)
- Drug hypersensitivity
male:
- Haemorrhage intracranial (bleeding within the skull)
- Abdominal distension
- Alpha 1 foetoprotein increased
- Anaphylactic reaction (serious allergic reaction)
- Anxiety
- Arrhythmia (irregular heartbeat)
- Chronic kidney disease
- Drug ineffective
Helidac side effects by age (0-1 to 60+) *:
0-1:
n/a
2-9:
n/a
10-19:
n/a
20-29:
- Drug ineffective
30-39:
- Abdominal distension
- Deep vein thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis)
- Diabetes mellitus (diabetes, caused by a deficiency of the pancreatic hormone insulin)
40-49:
- Abdominal distension
- Chest pain
- Gastric disorder (disease of stomach)
50-59:
- Chronic kidney disease
- Anaphylactic reaction (serious allergic reaction)
- Anxiety
- Arrhythmia (irregular heartbeat)
- Back pain
- Drug hypersensitivity
- Grand mal convulsion (a type of generalized seizure that affects the entire brain)
60+:
- Dehydration (dryness resulting from the removal of water)
- Dysgeusia (disorder of the sense of taste)
- Malaise (a feeling of general discomfort or uneasiness)
- Nausea (feeling of having an urge to vomit)
- Unexpected therapeutic effect
- Haemorrhage intracranial (bleeding within the skull)
- Abdominal distension
- Abdominal pain
- Abdominal pain upper
- Alpha 1 foetoprotein increased
* Approximation only. Some reports may have incomplete information.
Do you take Helidac?
Personalize this study to your gender and ageHow to use the study?
You can discuss the study with your doctor, to ensure that all drug risks and benefits are fully discussed and understood.
How the study uses the data?
The study is based on bismuth subsalicylate; metronidazole; tetracycline hydrochloride (the active ingredients of Helidac) and Helidac (the brand name). Other drugs that have the same active ingredients (e.g. generic drugs) are not considered.
Related studies
Alternative drugs to, pros and cons of Helidac:
- Helidac (56 reports)
All Helidac side effects from A to Z:
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