All medications have side effects. Hives, constipation, dry mouth, and headaches are common side effects in a lot of drugs. But in some cases certain side effect combinations can indicate an allergic reaction instead of being a side effect. Be sure to read the specific warnings on the drug to be sure.
Overall, the entire suite of B-complex vitamins is essential for good hair and skin. In addition to Vitamin B12, vitamins B3 and B6 are also critical for hair and skin growth and appearance. A balanced B-complex vitamin supplement provides the extra boost your hair and skin may need to look great.
Yet another vitamin, vitamin E, can help protect your hair and your skin as well. Know how to strengthen hair roots by incorporating this powerhouse vitamin in your diet through almonds, silken tofu, salmon, sunflower seeds, shrimp, and squash, among others. The Recommended Daily Allowance (RDA) for vitamin E is 15mg a day for adults.