This list includes 7 Medications that start with Q that start with Q, from “Quazepam” to “Quinupristin/dalfopristin”. Many are uncommon or specialized, and they are mainly used for sleep problems, bacterial infections, or other targeted clinical purposes.

Medications that start with Q are a small group of drugs with varied uses and histories. Quinine, an early antimalarial, is a notable example that shows historical influence on modern drug names.

Below you’ll find the table with Generic name, Brand name, Drug class, Common uses, and Common side effects.

Generic name: A concise entry showing the medication’s official name so you can identify the active ingredient quickly.

Brand name: Common trade names help you match the generic drug to products you may see in pharmacies.

Drug class: Shows the general category so you understand how the medicine works and what conditions it treats.

Common uses: Short summary of typical reasons the drug is prescribed, helping you find relevant treatments quickly.

Common side effects: Lists frequent adverse effects so you can recognize and discuss potential risks with your healthcare team.

Medications that start with Q

GenericNameBrandNamesDrugClassTypicalAdultDose
QuetiapineSeroquelAtypical antipsychotic25 mg oral twice daily
QuinaprilAccuprilACE inhibitor (antihypertensive)10 mg oral daily
QuinidineQuinidexClass IA antiarrhythmic200 mg oral every 6–8 hours
QuinineQualaquinAntimalarial (antipyretic)650 mg oral every 8 hours
Quinupristin/dalfopristinSynercidStreptogramin antibiotic7.5 mg/kg IV every 8 hours
QuazepamDoralBenzodiazepine hypnotic15 mg oral at bedtime
QuinacrineAtabrineAntiprotozoal/antimalarial100 mg oral twice daily

Descriptions

Quetiapine
Used for schizophrenia and bipolar disorder; may cause drowsiness, weight gain, and dry mouth. Important: avoid alcohol and be cautious with driving due to sedation.
Quinapril
Treats high blood pressure and heart failure; may cause cough, dizziness, and high potassium. Important: avoid during pregnancy and tell your doctor about persistent cough.
Quinidine
Used for certain abnormal heart rhythms; side effects can include diarrhea, dizziness, and low blood pressure. Important: interacts with many drugs and often needs ECG monitoring.
Quinine
Used to treat malaria (and sometimes leg cramps historically); can cause ringing in the ears, headache, and nausea. Important: may affect heart rhythm and should be used under medical supervision.
Quinupristin/dalfopristin
IV antibiotic for some resistant bacterial infections; common effects include infusion site pain, nausea, and liver enzyme changes. Important: IV use only and has many drug interactions.
Quazepam
Used short-term for insomnia; may cause drowsiness, memory problems, and balance issues. Important: risk of dependence—avoid with alcohol or opioids.
Quinacrine
Older antimalarial also used for certain parasitic infections; may cause nausea and skin discoloration. Important: avoid in pregnancy and report severe skin or allergic reactions.
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