1 What is SAStid?

Brand: SAStid

Generic: Salicylic acid and sulfur

Sastid is a medicated soap containing salicylic acid and sulfur, and is used to treat skin disorders such as acne. It is also used to treat dandruff and other scalp disorders like seborrheic dermatitis.. It is available without a doctor’s prescription. It is available in following dosage forms:

  • Lotion
  • Cream
  • Soap
  • Bar
  • Ointment
  • Shampoo

2 What to Know Before Using

Although you can purchase Sastid without prescription, you must use it only as stated in the label. All drugs, including Sastid, have potential side effects. Following factors should be considered before taking this drug:


If you have had an allergic reaction to Sastid or to any of its ingredients, inform your doctor. You should also tell your healthcare provider if you are allergic to any other drugs or food products.

Pediatric patients

Data shows that Sastid may not be totally safe to children, and they are at more at risk of side effects because it is absorbed more on their skin. Products containing salicylic acid should only be applied to small areas of skin only where it is needed.


There is not enough data showing that Sastid may cause more problems in elderly patients.

Drug Interactions

Some drugs cannot be used with Sastid due to risk of interactions, which can cause undesirable effects. Sastid should not be used concurrently with ketorolac. Call the doctor if you take any of the following drugs before receiving Sastid:

  • Abciximab
  • Acebutolol
  • Acenocoumarol
  • Alacepril
  • Alprenolol
  • Amiloride
  • Amineptine
  • Amitriptyline
  • Amitriptylinoxide
  • Amoxapine
  • Anagrelide
  • Anisindione
  • Apixaban
  • Ardeparin
  • Argatroban
  • Arotinolol
  • Atenolol
  • Azosemide
  • Befunolol
  • Bemetizide
  • Benazepril
  • Bendroflumethiazide
  • Benzthiazide
  • Beta Glucan
  • Betaxolol
  • Bevantolol
  • Bisoprolol
  • Bivalirudin
  • Bopindolol
  • Bucindolol
  • Bumetanide
  • Bupranolol
  • Buthiazide
  • Canrenoate
  • Captopril
  • Carteolol
  • Carvedilol
  • Celiprolol
  • Certoparin
  • Chlorothiazide
  • Chlorthalidone
  • Cilazapril
  • Cilostazol
  • Citalopram
  • Clomipramine
  • Clopamide
  • Clopidogrel
  • Cyclopenthiazide
  • Cyclosporine
  • Dabigatran
  • Dalteparin
  • Danaparoid
  • Delapril
  • Desipramine
  • Desirudin
  • Desvenlafaxine
  • Dibenzepin
  • Dicumarol
  • Dilevalol
  • Dipyridamole
  • Dothiepin
  • Doxepin
  • Duloxetine
  • Edoxaban
  • Enalapril
  • Enalaprilat
  • Enoxaparin
  • Eptifibatide
  • Erlotinib
  • Escitalopram
  • Esmolol
  • Etexilate
  • Ethacrynic Acid
  • Feverfew
  • Fluoxetine
  • Fluvoxamine
  • Fondaparinux
  • Fosinopril Hydrochlorothiazide
  • Furosemide
  • Ginkgo
  • Gossypol
  • Heparin
  • Hydroflumethiazide
  • Imidapril
  • Imipramine
  • Indapamide
  • Labetalol
  • Landiolol
  • Lepirudin
  • Levobunolol
  • Levomilnacipran
  • Lisinopril
  • Lofepramine
  • Meadowsweet
  • Melitracen
  • Mepindolol
  • Methotrexate
  • Methyclothiazide
  • Metipranolol
  • Metolazone
  • Metoprolol
  • Milnacipran
  • Moexipril
  • Nadolol
  • Nadroparin
  • Nebivolol
  • Nefazodone
  • Nipradilol
  • Nortriptyline
  • Opipramol
  • Oxprenolol
  • Parnaparin
  • Paroxetine
  • Pemetrexed
  • Penbutolol
  • Pentopril
  • Pentosan
  • Pentoxifylline
  • Perindopril
  • Phenindione
  • Phenprocoumon
  • Pindolol
  • Piretanide
  • Polysulfate Sodium
  • Polythiazide
  • Pralatrexate
  • Prasugrel Protein C
  • Probenecid
  • Propranolol
  • Protriptyline
  • Quinapril
  • Ramipril
  • Reboxetine
  • Reviparin
  • Rivaroxaban
  • Sertraline
  • Sibutramine
  • Sotalol
  • Spirapril
  • Spironolactone
  • Tacrolimus
  • Talinolol
  • Tamarind
  • Temocapril
  • Tertatolol
  • Tianeptine
  • Ticlopidine
  • Timolol
  • Tinzaparin
  • Tirofiban
  • Torsemide
  • Trandolapril
  • Triamterene
  • Trichlormethiazide
  • Trimipramine
  • Venlafaxine
  • Vilazodone
  • Vortioxetine
  • Warfarin
  • Xipamide
  • Zofenopril

If you use alcohol or tobacco, or have other medical problems, tell them to your doctor before using Sastid.

3 Proper Usage

  1. To avoid adverse effects, Sastid should be used exactly as prescribed by your doctor. Use Sastid properly and do not use it longer than the recommended time. Read all the instructions mentioned in the medication guide.

To use the Sastid skin cleansing lotion:
After moistening your skin with water, put Sastid on your fingertips or a wet sponge and gently rub it until produces lots of lather. After that, rinse the area gently and then dry your skin.

To use Sastid shampoo/bar:
Use lukewarm water to wet your hair and scalp. Then apply Sastid to your hair and rub it gently to generate lather. Keep rubbing the lather for several minutes and then let it remain in your scalp for several minutes and then rinse thoroughly. Apply the medicine again and rinse.

To use a Sastid bar as a soap:
Use the medicine to wash your face and other areas affected. Make sure to wet your skin before use. After that, rinse the area thoroughly and pat dry.

After using the medicine, wash your hands immediately in order to remove any medicine that may be left on them. Do not apply the medicine on your eyes. If you get some medicine in your eye accidentally, immediately wash your eyes with plenty of water.

Make sure to use Sastid as instructed.

Sastid should be stored at room temperature within a closed container, away from heat, direct light and moisture. Keep this drug out of the reach of children. Do not store expired or outdated medicines or the medicine no longer needed.

4 Precautions to Take

Sastid soap can make your skin more sensitive. Do not use any of the following topical products on the same area of skin on which you are applying Sastid soap, unless advised by your healthcare provider.

  • Alcohol-containing preparations
  • Abrasive soaps or cleansers
  • Cosmetics or soaps having a drying effect on the skin
  • Any topical acne preparation or preparation consisting of a peeling agent (for example, resorcinol, benzoyl peroxide, or retinoic acid (vitamin A)
  • Medicated cosmetics
  • Other topical medicine for the skin

Using these products along with Sastid may result in severe skin irritation.

Avoid using any mercury-containing medicine (like ammoniated mercury ointment) on the same area as this combination. It can result in adverse effects like staining the skin black, producing foul smell and skin irritation. Ask your doctor if you have any queries about it.

Avoid taking oral aspirin or other salicylates along with Sastid as it can lead to overdose as both of these have same active ingredient.

5 Potential Side Effects

Sastid soap may cause side effects, especially if not used properly. Sastid may cause the following side effects, which require medical attention:

  • Irritation
  • Skin staining
  • Burning sensation
  • Redness