Please note: Dosage information listed on the Drugs.com website should be used as a guideline only. Always consult your doctor or healthcare specialist before changing the dosage of any medicines.
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See also: Complete Drug Dosage A to Z index
Pediatric Dosage Guides
Use these dosage charts for infants and children under 12 years old.
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.
A-Z Index of Drug Dosage
- A-Hydrocort (hydrocortisone... → Afrezza (insulin human)...
- Afstyla (antihemophilic... → Ammonium Lactate Topical
- Ammonul (sodium phenylacetate... → Atezolizumab
- Atgam (equine thymocyte... → Azurette (desogestrel /...
- B-Donna Tablets... → Bioflavonoids / Zinc Glycinate
- Biorphen (phenylephrine... → Byvalson (nebivolol...
- C-Nate DHA (omega-3 fatty... → Cefotan (cefotetan disodium)...
- Cefotaxime → Citanest Plain Dental...
- CitraNatal 90 DHA (vitamin C... → Cortisone
- Cortisporin Cream (neomycin... → Cytra-3 Oral Syrup (potassium...
- D.H.E. 45 (dihydroergotamine... → Dexrazoxane
- Dextenza Insert... → Drax Exametazime (technetium...
- Drisdol (ergocalciferol)... → Dyzbac (dietary supplement)...
- FaBB Tablets (pyridoxine... → FML (fluorometholone)...
- FML Forte (fluorometholone)... → Fyremadel (ganirelix acetate)...
- I3odine Max (sodium iodide... → Isentress (raltegravir)...
- Isibloom (desogestrel and... → Izba (travoprost) ophthalmic...
- L-Methyl-MC NAC Tablets... → Liptruzet Tablets (ezetimibe...
- Liquicet (hydrocodone... → Lyza Tablets (norethindrone)...
- Nabi-HB (human hepatitis b... → Nitrostat (nitroglycerin)...
- Nityr (nitisinone) tablet → Nyvepria (pegfilgrastim-apgf)...
- P-Bloc (sarraceniaceae)... → Pifeltro (doravirine) tablet...
- Piflufolastat F 18 → Prilovix Lite Plus Cream...
- Prilovix Ultralite (lidocaine... → Pyrukynd (mitapivat) tablet...
- Sabril (vigabatrin) powder... → Sodium Oxybate
- Sodium Phenylbutyrate → Symlin (pramlintide acetate)...
- Symmetrel (amantadine... → Syprine (trientine...
- T-Stat (erythromycin) Topical... → Tilade (nedocromil sodium)...
- Tildrakizumab → Triesence (triamcinolone...
- Trifarotene Topical → Tyzine (tetrahydrozoline...
- V-COF Suspension... → Vivacaine (bupivacaine...
- Vivactil (protriptyline... → Vyzulta (latanoprostene...