Skip to Content

Drug Dosage

Please note - Dosage information listed on the website should be used as a guideline only. Always consult your doctor or healthcare specialist before changing the dosage of any medicines.

Pediatric Dosage Guides

Use these dosage charts for infants and children under 12 years old.

Dosage Charts (Infants & Children)

More about Dosage and Administration

The dose is the amount of drug taken at any one time. This can be expressed as the weight of drug (e.g. 250 mg), volume of drug solution (e.g. 10 mL, 2 drops), the number of dosage forms (e.g. 1 capsule, 1 suppository) or some other quantity (e.g. 2 puffs).

The dosage regimen is the frequency at which the drug doses are given. Examples include 2.5 mL twice a day, one tablet three times a day, one injection every four weeks.

The total daily dose is calculated from the dose and the number of times per day the dose is taken.

The dosage form is the physical form of a dose of drug. Common dosage forms include tablets, capsules, creams, ointments, aerosols and patches. Each dosage form may also have a number of specialized forms such as extended-release, buccal, dispersible and chewable tablets. The strength is the amount of drug in the dosage form or a unit of the dosage form (e.g. 500 mg capsule, 250 mg/5 mL suspension).

The route of administration is the way the dosage form is given. Common routes of administration include oral, rectal, inhalation, nasal and topical.

The optimal dosage is the dosage that gives the desired effect with minimum side effects.

There are many factors taken into consideration when deciding a dose of drug - including age of the patient, weight, sex, ethnicity, liver and kidney function and whether the patient smokes. Other medicines may also affect the drug dose.

Dosage instructions are written on the doctor's prescription or hospital chart, and on the pharmacy label of a prescribed medicine. Dosage instructions are also found on the packaging and inserts of over-the-counter medicines.

Drug Dosage A-Z Index


A-Hydrocort injection, powder, lyophilized, for solution → Albalon Ophthalmic Solution, USP 0.1% Albendazole → Analpram HC Cream cream Anascorp Injection ) injection, powder, lyophilized, for solution → Avage cream Avalide tablet, film coated → Azurette tablets


B-Donna Tablets tablet → Bloxiverz Injection injection Boceprevir → Byvalson tablet, film coated


C-Topical Solution topical solution → Celebrex capsule Celecoxib → Clear Up Prep gel ClearLax powder for oral solution → Critic Aid Skin paste Crixivan capsule → Cytra-3 Oral Syrup syrup


D.H.E. 45 injection, solution → Dextromethorphan / Phenylephrine / Pyrilamine Dextromethorphan / Promethazine → Duopa enteral suspension Dupilumab → Dyzbac tablet


E-Z Disk tablet → Ertaczo cream Ertapenem → Ezogabine


FaBB Tablets tablet → Formoterol / Mometasone Fortamet tablet, film coated, extended → Fycompa tablets, oral suspension


Gabapentin → Gynazole-1 vaginal cream


H.P. Acthar Gel injection → Hyzaar tablet, film coated


I3odine Max kit, capsules and solution → Isopto Carpine Ophthalmic Solution ophthalmic solution Isopto Cetamide ophthalmic solution → Izba ophthalmic solution


J-COF DHC oral liquid → Jynarque kit


K-Dur extended-release tablets → Kytril tablet, film coated; oral solution


L-Methyl-MC NAC Tablets tablet, coated → Lo Loestrin Fe tablets Lo Minastrin Fe tablets → Lyza Tablets tablet


M-Cresyl Acetate Otic → Metvixia cream Mevacor tablet → Myzilra tablets


Nabi-HB injection → Nolix Cream cream Nolvadex tablets → Nystop topical powder