What side effects can ranitidine have?
Below you will find the most important information about possible known side effects of ranitidine.
These side effects do not occur, but you can. Because every person reacts differently to medication. Please also note that the type and frequency of side effects may vary depending on the drug formulation (eg tablet, syringe, ointment).
Occasional side effects:
headache; Diarrhea; Constipation; Rash.
Rare side effects:
itchy rashes; Redness; Fatigue; Dizziness; Nausea; Movement disorders; severe headache; blurred vision; Confusion; Restlessness; hallucinations; Depression; Hair loss; Changes in the blood picture.
Very rare side effects:
joint pain; Muscle aches; Cardiac arrhythmias; Erectile dysfunction; Loss of libido; Mammary gland enlargement in men (gynecomastia); Nephritis.
What interactions does ranitidine show?
Please note that the interactions may vary depending on the drug formulation of a drug (eg tablet, syringe, ointment).
Ranitidine may affect the uptake of other drugs into the bloodstream. For example, the absorption and the effect of ketoconazole (fungicides) are reduced.
With concurrent treatment, ranitidine may increase the blood concentration and effects of the following: theophylline, glipizide (hypoglycemic agent), midazolam (anesthetic) or triazolam (psychotropic drug). Ranitidine also increases the blood alcohol level and thus the effect of alcohol.
Concomitant use of acid-binding agents (antacids) or sucralfate may decrease the uptake and activity of ranitidine.
The antiarrhythmic agents procainamide and N-acetylprocainamide, on the other hand, can delay the excretion of ranitidine and thus increase the effect.