Nizatidine and Acyclovir drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Nizatidine (nizatidine) and Acyclovir (acyclovir). Common drug interactions include weight decreased among females and lower respiratory tract infection among males.

The phase IV clinical study analyzes what interactions people have when they take Nizatidine and Acyclovir. It is created by eHealthMe based on reports of 35 people who take the same drugs from the FDA, and is updated regularly.

What is Nizatidine?

Nizatidine has active ingredients of nizatidine. It is often used in gastroesophageal reflux disease. eHealthMe is studying from 3,082 Nizatidine users. Check the latest studies of Nizatidine.

What is Acyclovir?

Acyclovir has active ingredients of acyclovir. It is often used in herpes simplex. eHealthMe is studying from 54,961 Acyclovir users. Check the latest studies of Acyclovir.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.

On Aug, 19, 2026

35 people who take Nizatidine and Acyclovir together, and have interactions are studied.

Nizatidine and Acyclovir drug interactions.

What are the common drug interactions of Nizatidine and Acyclovir, by gender? *:

female:

Weight decreased
Full blood count decreased
Hypotension (abnormally low blood pressure)
Pyrexia (fever)
Bile duct cancer
Carpal tunnel syndrome (nerve compression at wrist results numbness weakness, pain , swelling)
Cholangitis (infection of the bile duct)
Loss of consciousness
Nausea (feeling of having an urge to vomit)
Vision blurred

male:

Lower respiratory tract infection
Dyspnoea (difficult or laboured respiration)
Respiratory distress (difficulty in breathing)
Abdominal pain
Blood sodium increased
Collapse (sudden functional breakdown)
Constipation
Culture urine positive
Drug level increased
Epidermal necrolysis (skin condition that is usually caused by a reaction to drugs)

What are the common drug interactions of Nizatidine and Acyclovir, by age (0-1 to 60+)? *:

0-1:

n/a

2-9:

n/a

10-19:

Dyspnoea (difficult or laboured respiration)
Pneumocystis carinii pneumonia (pneumonia occurring in infants or in persons with impaired immune systems)
Pneumonia
Pneumonia cytomegaloviral (cmv pneumonia is caused by a member of a group of herpes-type viruses)
Pyrexia (fever)
Respiratory distress (difficulty in breathing)

20-29:

n/a

30-39:

Hyperkalaemia (damage to or disease of the kidney)
Anhedonia (inability to experience pleasure from activities usually found enjoyable)
Anxiety
Arrhythmia (irregular heartbeat)
Asthenia (weakness)
Asthma
Atrial fibrillation (fibrillation of the muscles of the atria of the heart)
Atrioventricular block complete (heart block complete)
Back pain
Bursitis (inflammation of a bursa, typically one in the knee, elbow, or shoulder)

40-49:

Swelling
Systemic candida (whole body fungal infection)
Tolerance decreased
Tremor (trembling or shaking movements in one or more parts of your body)
Weakness
Bile duct cancer
Cholangitis (infection of the bile duct)
Hypotension (abnormally low blood pressure)
Loss of consciousness
Nausea (feeling of having an urge to vomit)

50-59:

Abdominal pain
Ascites (accumulation of fluid in the abdominal cavity)
Atrial fibrillation (fibrillation of the muscles of the atria of the heart)
Blood creatinine increased
Blood sodium increased
Collapse (sudden functional breakdown)
Constipation
Culture urine positive
Heart rate increased
Hepatic necrosis (large portions of liver die off due to severe liver disease)

60+:

Lower respiratory tract infection
Abdominal discomfort
Hyperhidrosis (abnormally increased sweating)
Restlessness (not able to rest)
Rheumatoid arthritis (a chronic progressive disease causing inflammation in the joints)
Vomiting
Weight decreased
Full blood count decreased
Acute myocardial infarction (acute heart attack)
Carpal tunnel syndrome (nerve compression at wrist results numbness weakness, pain , swelling)

What are the existing conditions these people have? *

Rashes (redness): 6 people, 17.14%
Short-Bowel Syndrome (a condition in which the body cannot absorb enough fluids and nutrients because part of the small intestine is missing): 4 people, 11.43%
Oral Herpes (viral infection of mouth): 4 people, 11.43%
Migraine (headache): 4 people, 11.43%
High Blood Pressure: 3 people, 8.57%
Pneumonia: 2 people, 5.71%
Pain: 2 people, 5.71%
Lower Respiratory Tract Infection: 2 people, 5.71%
Infection: 2 people, 5.71%
Hiv Infection: 2 people, 5.71%

* Approximation only. Some reports may have incomplete information.

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