Problem

Safe to take

Indigestion, heartburn, gas, upset stomach

Antacids for heartburn (Tums, Rolaids, Mylanta, Maalox)
Pepcid and Zantac may be used after the first trimester
Simethicone for gas pains (Gas-X, Mylicon, Phazyme)

Cough or cold

Guaifenesin plus dextromethorphan (Robitussin DM, Benylin Expectorant, Vicks Cough Syrup)

Cough drops

Vicks VapoRub

Note that some cold remedies contain alcohol, so you may want to use them sparingly if at all. Try to avoid products that contain the decongestants pseudoephedrine and phenylephrine, which can affect blood flow to the placenta.

Pain relief, headache, or fever

Acetaminophen (Tylenol, Anacin-3)

Allergy relief

Chlorpheniramine antihistamine alone (Chlor-Trimeton allergy tablets)
Benadryl, Claritin, Zyrtec
Be careful not to use decongestant sprays more often than is recommended on the packaging, as they can damage nasal passages if used too frequently.

Constipation, hemorrhoids, and diarrhea

Bulking products can be used regularly (Metamucil, Citrucel)

Laxatives and stool softeners (Colace, Dulcolax, milk of magnesia)

Hemorrhoid creams (Tucks, Preparation H, or Anusol)

Anti-diarrhea medication (Imodium)

Yeast infections and other fungal infections such as athlete's foot

Miconazole (Monistat 3)

Clotrimazole (Gyne-Lotrimin 3, Mycelex 7, Cruex, Lotrimin AF, Desenex)

Tioconazole (Monistat 1, Vagistat 1)

Nystatin (Bio-Statin, Mycostatin, Nilstat)

Butoconazole (Gynazole 1, Femstat 3, Mycelex 3)

Butenafine (Lotrimin Ultra)

Insomnia

Diphenhydramine (Benadryl, Nytol, Sominex-2)

Doxylamine succinate (Unisom Nighttime Sleep-Aid)

First-aid preparations

Polysporin, Cortaid, Lanacort, Neosporin